Here k(T) is the reaction rate constant that depends on temperature. [A] and [B] are the molar concentrations of substances A and B in moles per unit volume of solution, assuming the reaction is taking place throughout the volume of the solution. (For a reaction taking place at a boundary one would use instead moles of A or B per unit area).
The exponents m and n are called partial orders of reaction and are not generally equal to the stoichiometric coefficients a and b. Instead they depend on the reaction mechanism and can be determined experimentally.
The reaction rate (rate of reaction) or speed of reaction for a reactant or product in a particular reaction is intuitively defined as how fast or slow a reaction takes place. For example, the oxidative rusting of iron under Earth's atmosphere is a slow reaction that can take many years, but the combustion of cellulose in a fire is a reaction that takes place in fractions of a second.
Have you ever been to a Demolition Derby? Then you have an idea of how molecular collisions happen. In this episode, Hank talks about collisions between molecules and atoms, activation energy, writing rate laws, equilibrium expressions, reactions mechanics, and rate-determining steps. And funnel cakes are AWESOME!
Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App!
Download it here for Apple Devices: https://apple.co/3d4eyZo
Download it here for Android Devices: https://bit.ly/2SrDulJ
--
Table of Contents
Collisions Between Molecules and Atoms 0:00
Activation Energy 1:32
Writing Rate Laws 3:28
Rate Laws and Equilibrium Expressions 5:30
Reaction Mechanisms 8:06
Rate-Determining Steps 7:04
Crash Course is on Patreon! You c...
published: 24 Sep 2013
Kinetics: Initial Rates and Integrated Rate Laws
Who likes math! Oh, you don't? Maybe skip this one on kinetics. Unless you have to answer this stuff for class. Then yeah, watch this.
Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem
More AP Chemistry review materials from me: bit.ly/URPDave
Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem
Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem
Biology Tutorials: http://bit.ly/ProfDaveBio
Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1
Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2
Mathematics Tutorials: http://bit.ly/ProfDaveMaths
EMAIL► [email protected]
PATREON► http://patreon.com/ProfessorDaveExplains
Check out "Is This Wi-Fi Organic?", my book on disarming pseudoscience!
Amazon: https://amzn.to/2HtNpVH
Bookshop...
published: 23 Dec 2015
GCSE Chemistry - Rates of Reaction #46
In this video we'll look at:
- Some examples of reactions that happen at different rates
- The different ways we can calculate the rate of a reaction
- Some examples of calculating the rate of reaction using decimetres cubed and minutes (higher tier)
published: 02 Apr 2019
Chemistry - Chemical Kinetics (2 of 30) Reaction Rate- Definition
Visit http://ilectureonline.com for more math and science lectures!
In this video I will give the definition of reaction rates in chemical kinetics.
published: 13 Apr 2014
How to speed up chemical reactions (and get a date) - Aaron Sams
View full lesson: http://ed.ted.com/lessons/how-to-speed-up-chemical-reactions-and-get-a-date
The complex systems of high school dating and chemical reactions may have more in common than you think. Explore five rules for speeding up chemical reactions in the lab that might just land you a date to a dance!
Lesson by Mark Paricio & Aaron Sams, animation by Cognitive Media.
published: 18 Jun 2012
Rates of Reactions - Part 1 | Reactions | Chemistry | FuseSchool
Rates of Reactions - Part 1 | Reactions | Chemistry | FuseSchool
In this video you are going to learn what the reaction rate is and some ways of measuring reaction rate.
Reaction rate is a measure of how quickly the reactants in a reaction change into the products of the reaction.
The rate of a chemical reaction can be measured in two ways:
1) The first way is to measure how quickly the reactants (the substances on the left of the arrow in the equation) decrease.
2) The second way is to measure how quickly the products (the substances on the right of the arrow in the equation) increase.
Example for 1: Measuring how quickly reactants decrease.
We will look at the reaction between marble chips (calcium carbonate) and hydrochloric acid.
As the reaction proceeds, the reactants lose mas...
published: 10 Jan 2017
Chemical Kinetics - Initial Rates Method
This chemistry video tutorial provides a basic introduction into chemical kinetics. It explains how to calculate the average rate of disappearance of a reactant as well as how to identify the rate law expression using the initial rates method. It explains how to calculate the rate constant along with the appropriate units and how to calculate the initial rate of the reaction given the concentration of the reactants.
Access The Full 1 Hour 15 Minute Video:
https://www.patreon.com/MathScienceTutor
PDF Worksheet With 12 Questions:
https://bit.ly/3WXNnqr
Direct Link to The Full Video:
https://bit.ly/3iho1Fa
Chemistry PDF Worksheets:
https://www.video-tutor.net/chemistry-basic-introduction.html
_________...
published: 04 Feb 2021
Factors Affecting the Rate of the Reaction - Chemical Kinetics
This chemistry video tutorial discusses five factors affecting the rate of a reaction. This includes the nature of the reactants, concentration, surface area, temperature, and the use of a catalyst. This tutorial is part of the chemical kinetics series.
Chemical Kinetics - Free Formula Sheet:
https://bit.ly/3zYmDjy
Chemistry 2 Final Exam Review:
https://www.youtube.com/watch?v=lSmJN1_uVpI
Chemistry PDF Worksheets:
https://www.video-tutor.net/chemistry-basic-introduction.html
_______________________________
Chemical Kinetics - Initial Rate Method:
https://www.youtube.com/watch?v=oh4L2gcI5ds
Rate Constant k - Find The Units:
https://www.youtube.com/watch?v=1g-vDSWYins
Integrated Rate Laws - 1st & 2nd Order:
https://www...
published: 22 Nov 2017
15.2 The Rate of a Chemical Reaction
published: 12 Aug 2024
The Rate Law
036 - The Rate Law
Paul Andersen explains how the rate law can be used to determined the speed of a reaction over time. Zeroth-order, first-order and second-order reactions are described as well as the overall rate law of a reaction. The rate of a reaction can be determined experimentally.
Do you speak another language? Help me translate my videos:
http://www.bozemanscience.com/translations/
Music Attribution
Title: String Theory
Artist: Herman Jolly
http://sunsetvalley.bandcamp.com/track/string-theory
All of the images are licensed under creative commons and public domain licensing:
"File:Ammonia-3D-vdW.png." Wikipedia, the Free Encyclopedia. Accessed October 19, 2013. http://en.wikipedia.org/wiki/File:Ammonia-3D-vdW.png.
File:Crystal Violet in Aqueous Solution.jpg, n.d. http://en...
Have you ever been to a Demolition Derby? Then you have an idea of how molecular collisions happen. In this episode, Hank talks about collisions between molecul...
Have you ever been to a Demolition Derby? Then you have an idea of how molecular collisions happen. In this episode, Hank talks about collisions between molecules and atoms, activation energy, writing rate laws, equilibrium expressions, reactions mechanics, and rate-determining steps. And funnel cakes are AWESOME!
Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App!
Download it here for Apple Devices: https://apple.co/3d4eyZo
Download it here for Android Devices: https://bit.ly/2SrDulJ
--
Table of Contents
Collisions Between Molecules and Atoms 0:00
Activation Energy 1:32
Writing Rate Laws 3:28
Rate Laws and Equilibrium Expressions 5:30
Reaction Mechanisms 8:06
Rate-Determining Steps 7:04
Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse
Want to find Crash Course elsewhere on the internet?
Facebook - http://www.facebook.com/YouTubeCrashCourse
Twitter - http://www.twitter.com/TheCrashCourse
Instagram - https://www.instagram.com/thecrashcourse/
CC Kids: http://www.youtube.com/crashcoursekids
Have you ever been to a Demolition Derby? Then you have an idea of how molecular collisions happen. In this episode, Hank talks about collisions between molecules and atoms, activation energy, writing rate laws, equilibrium expressions, reactions mechanics, and rate-determining steps. And funnel cakes are AWESOME!
Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App!
Download it here for Apple Devices: https://apple.co/3d4eyZo
Download it here for Android Devices: https://bit.ly/2SrDulJ
--
Table of Contents
Collisions Between Molecules and Atoms 0:00
Activation Energy 1:32
Writing Rate Laws 3:28
Rate Laws and Equilibrium Expressions 5:30
Reaction Mechanisms 8:06
Rate-Determining Steps 7:04
Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse
Want to find Crash Course elsewhere on the internet?
Facebook - http://www.facebook.com/YouTubeCrashCourse
Twitter - http://www.twitter.com/TheCrashCourse
Instagram - https://www.instagram.com/thecrashcourse/
CC Kids: http://www.youtube.com/crashcoursekids
Who likes math! Oh, you don't? Maybe skip this one on kinetics. Unless you have to answer this stuff for class. Then yeah, watch this.
Watch the whole General ...
Who likes math! Oh, you don't? Maybe skip this one on kinetics. Unless you have to answer this stuff for class. Then yeah, watch this.
Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem
More AP Chemistry review materials from me: bit.ly/URPDave
Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem
Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem
Biology Tutorials: http://bit.ly/ProfDaveBio
Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1
Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2
Mathematics Tutorials: http://bit.ly/ProfDaveMaths
EMAIL► [email protected]
PATREON► http://patreon.com/ProfessorDaveExplains
Check out "Is This Wi-Fi Organic?", my book on disarming pseudoscience!
Amazon: https://amzn.to/2HtNpVH
Bookshop: https://bit.ly/39cKADM
Barnes and Noble: https://bit.ly/3pUjmrn
Book Depository: http://bit.ly/3aOVDlT
Who likes math! Oh, you don't? Maybe skip this one on kinetics. Unless you have to answer this stuff for class. Then yeah, watch this.
Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem
More AP Chemistry review materials from me: bit.ly/URPDave
Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem
Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem
Biology Tutorials: http://bit.ly/ProfDaveBio
Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1
Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2
Mathematics Tutorials: http://bit.ly/ProfDaveMaths
EMAIL► [email protected]
PATREON► http://patreon.com/ProfessorDaveExplains
Check out "Is This Wi-Fi Organic?", my book on disarming pseudoscience!
Amazon: https://amzn.to/2HtNpVH
Bookshop: https://bit.ly/39cKADM
Barnes and Noble: https://bit.ly/3pUjmrn
Book Depository: http://bit.ly/3aOVDlT
In this video we'll look at:
- Some examples of reactions that happen at different rates
- The different ways we can calculate the rate of a reaction
- Some exa...
In this video we'll look at:
- Some examples of reactions that happen at different rates
- The different ways we can calculate the rate of a reaction
- Some examples of calculating the rate of reaction using decimetres cubed and minutes (higher tier)
In this video we'll look at:
- Some examples of reactions that happen at different rates
- The different ways we can calculate the rate of a reaction
- Some examples of calculating the rate of reaction using decimetres cubed and minutes (higher tier)
View full lesson: http://ed.ted.com/lessons/how-to-speed-up-chemical-reactions-and-get-a-date
The complex systems of high school dating and chemical reactions ...
View full lesson: http://ed.ted.com/lessons/how-to-speed-up-chemical-reactions-and-get-a-date
The complex systems of high school dating and chemical reactions may have more in common than you think. Explore five rules for speeding up chemical reactions in the lab that might just land you a date to a dance!
Lesson by Mark Paricio & Aaron Sams, animation by Cognitive Media.
View full lesson: http://ed.ted.com/lessons/how-to-speed-up-chemical-reactions-and-get-a-date
The complex systems of high school dating and chemical reactions may have more in common than you think. Explore five rules for speeding up chemical reactions in the lab that might just land you a date to a dance!
Lesson by Mark Paricio & Aaron Sams, animation by Cognitive Media.
Rates of Reactions - Part 1 | Reactions | Chemistry | FuseSchool
In this video you are going to learn what the reaction rate is and some ways of measuring reac...
Rates of Reactions - Part 1 | Reactions | Chemistry | FuseSchool
In this video you are going to learn what the reaction rate is and some ways of measuring reaction rate.
Reaction rate is a measure of how quickly the reactants in a reaction change into the products of the reaction.
The rate of a chemical reaction can be measured in two ways:
1) The first way is to measure how quickly the reactants (the substances on the left of the arrow in the equation) decrease.
2) The second way is to measure how quickly the products (the substances on the right of the arrow in the equation) increase.
Example for 1: Measuring how quickly reactants decrease.
We will look at the reaction between marble chips (calcium carbonate) and hydrochloric acid.
As the reaction proceeds, the reactants lose mass because carbon dioxide gas is given off. We can measure the decrease in mass of reactants by using this type of apparatus with a conical flask stopwatch, cotton wool plug and balance.
Based on our measurements, we plot a graph of ‘mass of reactants against time’.
The rate of reaction at point A is given by the gradient at A which is y/x and the rate of reaction at point B is given by the gradient at point B which is y’/x’ .
Example for 2:
Instead of measuring the loss of mass of the reactant we can also measure the gain in volume of the product carbon dioxide.
Watch part 2 to learn more: https://www.youtube.com/watch?v=ExHV_cFWYSM
SUPPORT US ON PATREON
https://www.patreon.com/fuseschool
SUBSCRIBE to the FuseSchool YouTube channel for many more educational videos. Our teachers and animators come together to make fun & easy-to-understand videos in Chemistry, Biology, Physics, Maths & ICT.
VISIT us at www.fuseschool.org, where all of our videos are carefully organised into topics and specific orders, and to see what else we have on offer. Comment, like and share with other learners. You can both ask and answer questions, and teachers will get back to you.
These videos can be used in a flipped classroom model or as a revision aid.
Find all of our Chemistry videos here: https://www.youtube.com/playlist?list=PLW0gavSzhMlReKGMVfUt6YuNQsO0bqSMV
Find all of our Biology videos here: https://www.youtube.com/playlist?list=PLW0gavSzhMlQYSpKryVcEr3ERup5SxHl0
Find all of our Physics videos here: https://www.youtube.com/playlist?list=PLW0gavSzhMlTWm6Sr5uN2Uv5TXHiZUq8b
Find all of our Maths videos here: https://www.youtube.com/playlist?list=PLW0gavSzhMlTKBNbHH5u1SNnsrOaacKLu
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Access a deeper Learning Experience in the FuseSchool platform and app: www.fuseschool.org
Follow us: http://www.youtube.com/fuseschool
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This is an Open Educational Resource. If you would like to use the video, please contact us: [email protected]
Rates of Reactions - Part 1 | Reactions | Chemistry | FuseSchool
In this video you are going to learn what the reaction rate is and some ways of measuring reaction rate.
Reaction rate is a measure of how quickly the reactants in a reaction change into the products of the reaction.
The rate of a chemical reaction can be measured in two ways:
1) The first way is to measure how quickly the reactants (the substances on the left of the arrow in the equation) decrease.
2) The second way is to measure how quickly the products (the substances on the right of the arrow in the equation) increase.
Example for 1: Measuring how quickly reactants decrease.
We will look at the reaction between marble chips (calcium carbonate) and hydrochloric acid.
As the reaction proceeds, the reactants lose mass because carbon dioxide gas is given off. We can measure the decrease in mass of reactants by using this type of apparatus with a conical flask stopwatch, cotton wool plug and balance.
Based on our measurements, we plot a graph of ‘mass of reactants against time’.
The rate of reaction at point A is given by the gradient at A which is y/x and the rate of reaction at point B is given by the gradient at point B which is y’/x’ .
Example for 2:
Instead of measuring the loss of mass of the reactant we can also measure the gain in volume of the product carbon dioxide.
Watch part 2 to learn more: https://www.youtube.com/watch?v=ExHV_cFWYSM
SUPPORT US ON PATREON
https://www.patreon.com/fuseschool
SUBSCRIBE to the FuseSchool YouTube channel for many more educational videos. Our teachers and animators come together to make fun & easy-to-understand videos in Chemistry, Biology, Physics, Maths & ICT.
VISIT us at www.fuseschool.org, where all of our videos are carefully organised into topics and specific orders, and to see what else we have on offer. Comment, like and share with other learners. You can both ask and answer questions, and teachers will get back to you.
These videos can be used in a flipped classroom model or as a revision aid.
Find all of our Chemistry videos here: https://www.youtube.com/playlist?list=PLW0gavSzhMlReKGMVfUt6YuNQsO0bqSMV
Find all of our Biology videos here: https://www.youtube.com/playlist?list=PLW0gavSzhMlQYSpKryVcEr3ERup5SxHl0
Find all of our Physics videos here: https://www.youtube.com/playlist?list=PLW0gavSzhMlTWm6Sr5uN2Uv5TXHiZUq8b
Find all of our Maths videos here: https://www.youtube.com/playlist?list=PLW0gavSzhMlTKBNbHH5u1SNnsrOaacKLu
Instagram: https://www.instagram.com/fuseschool/
Facebook: https://www.facebook.com/fuseschool/
Twitter: https://twitter.com/fuseSchool
Access a deeper Learning Experience in the FuseSchool platform and app: www.fuseschool.org
Follow us: http://www.youtube.com/fuseschool
Befriend us: http://www.facebook.com/fuseschool
This is an Open Educational Resource. If you would like to use the video, please contact us: [email protected]
This chemistry video tutorial provides a basic introduction into chemical kinetics. It explains how to calculate the average rate of disappearance of a reactan...
This chemistry video tutorial provides a basic introduction into chemical kinetics. It explains how to calculate the average rate of disappearance of a reactant as well as how to identify the rate law expression using the initial rates method. It explains how to calculate the rate constant along with the appropriate units and how to calculate the initial rate of the reaction given the concentration of the reactants.
Access The Full 1 Hour 15 Minute Video:
https://www.patreon.com/MathScienceTutor
PDF Worksheet With 12 Questions:
https://bit.ly/3WXNnqr
Direct Link to The Full Video:
https://bit.ly/3iho1Fa
Chemistry PDF Worksheets:
https://www.video-tutor.net/chemistry-basic-introduction.html
________________________________________
Full 1 Hour 15 Minute Video on YouTube:
https://www.youtube.com/watch?v=i--cMKUOOt0
Join The YouTube Membership Program:
https://bit.ly/46xaQTR
This chemistry video tutorial provides a basic introduction into chemical kinetics. It explains how to calculate the average rate of disappearance of a reactant as well as how to identify the rate law expression using the initial rates method. It explains how to calculate the rate constant along with the appropriate units and how to calculate the initial rate of the reaction given the concentration of the reactants.
Access The Full 1 Hour 15 Minute Video:
https://www.patreon.com/MathScienceTutor
PDF Worksheet With 12 Questions:
https://bit.ly/3WXNnqr
Direct Link to The Full Video:
https://bit.ly/3iho1Fa
Chemistry PDF Worksheets:
https://www.video-tutor.net/chemistry-basic-introduction.html
________________________________________
Full 1 Hour 15 Minute Video on YouTube:
https://www.youtube.com/watch?v=i--cMKUOOt0
Join The YouTube Membership Program:
https://bit.ly/46xaQTR
This chemistry video tutorial discusses five factors affecting the rate of a reaction. This includes the nature of the reactants, concentration, surface area, ...
This chemistry video tutorial discusses five factors affecting the rate of a reaction. This includes the nature of the reactants, concentration, surface area, temperature, and the use of a catalyst. This tutorial is part of the chemical kinetics series.
Chemical Kinetics - Free Formula Sheet:
https://bit.ly/3zYmDjy
Chemistry 2 Final Exam Review:
https://www.youtube.com/watch?v=lSmJN1_uVpI
Chemistry PDF Worksheets:
https://www.video-tutor.net/chemistry-basic-introduction.html
_______________________________
Chemical Kinetics - Initial Rate Method:
https://www.youtube.com/watch?v=oh4L2gcI5ds
Rate Constant k - Find The Units:
https://www.youtube.com/watch?v=1g-vDSWYins
Integrated Rate Laws - 1st & 2nd Order:
https://www.youtube.com/watch?v=7I0Xg92_eA4
Reaction Rate Factors:
https://www.youtube.com/watch?v=JpoOfrPKgmM
Collision Theory & Activation Energy:
https://www.youtube.com/watch?v=jX4dEOFwaLQ
___________________________________
Potential Energy Diagrams:
https://www.youtube.com/watch?v=HeKOb3efJmE
Elementary Rate Laws:
https://www.youtube.com/watch?v=S84Llf1vqiM
Rate Laws of Reaction Mechanisms:
https://www.youtube.com/watch?v=B1bWIrOe0SE
Intermediates & Catalysts:
https://www.youtube.com/watch?v=i_39q6N1sAs
Types of Catalysts:
https://www.youtube.com/watch?v=Tb0nzaj7bSA
____________________________________
The Equilibrium Expression:
https://www.youtube.com/watch?v=cmVuUFIaLW0
Calculating Kp From Kc:
https://www.youtube.com/watch?v=s0PnM_LlUp4
Chemical Equilibrium & Ice Tables:
https://www.youtube.com/watch?v=J4WJCYpTYj8
Le Chatelier's Principle:
https://www.youtube.com/watch?v=bNcTt3l3Q8k
Acids and Bases - Introduction:
https://www.youtube.com/watch?v=FM2MpMbV0rw
______________________________________
Final Exams and Video Playlists:
https://www.video-tutor.net/
Full-Length Videos and Worksheets:
https://www.patreon.com/MathScienceTutor/collections
This chemistry video tutorial discusses five factors affecting the rate of a reaction. This includes the nature of the reactants, concentration, surface area, temperature, and the use of a catalyst. This tutorial is part of the chemical kinetics series.
Chemical Kinetics - Free Formula Sheet:
https://bit.ly/3zYmDjy
Chemistry 2 Final Exam Review:
https://www.youtube.com/watch?v=lSmJN1_uVpI
Chemistry PDF Worksheets:
https://www.video-tutor.net/chemistry-basic-introduction.html
_______________________________
Chemical Kinetics - Initial Rate Method:
https://www.youtube.com/watch?v=oh4L2gcI5ds
Rate Constant k - Find The Units:
https://www.youtube.com/watch?v=1g-vDSWYins
Integrated Rate Laws - 1st & 2nd Order:
https://www.youtube.com/watch?v=7I0Xg92_eA4
Reaction Rate Factors:
https://www.youtube.com/watch?v=JpoOfrPKgmM
Collision Theory & Activation Energy:
https://www.youtube.com/watch?v=jX4dEOFwaLQ
___________________________________
Potential Energy Diagrams:
https://www.youtube.com/watch?v=HeKOb3efJmE
Elementary Rate Laws:
https://www.youtube.com/watch?v=S84Llf1vqiM
Rate Laws of Reaction Mechanisms:
https://www.youtube.com/watch?v=B1bWIrOe0SE
Intermediates & Catalysts:
https://www.youtube.com/watch?v=i_39q6N1sAs
Types of Catalysts:
https://www.youtube.com/watch?v=Tb0nzaj7bSA
____________________________________
The Equilibrium Expression:
https://www.youtube.com/watch?v=cmVuUFIaLW0
Calculating Kp From Kc:
https://www.youtube.com/watch?v=s0PnM_LlUp4
Chemical Equilibrium & Ice Tables:
https://www.youtube.com/watch?v=J4WJCYpTYj8
Le Chatelier's Principle:
https://www.youtube.com/watch?v=bNcTt3l3Q8k
Acids and Bases - Introduction:
https://www.youtube.com/watch?v=FM2MpMbV0rw
______________________________________
Final Exams and Video Playlists:
https://www.video-tutor.net/
Full-Length Videos and Worksheets:
https://www.patreon.com/MathScienceTutor/collections
036 - The Rate Law
Paul Andersen explains how the rate law can be used to determined the speed of a reaction over time. Zeroth-order, first-order and second-...
036 - The Rate Law
Paul Andersen explains how the rate law can be used to determined the speed of a reaction over time. Zeroth-order, first-order and second-order reactions are described as well as the overall rate law of a reaction. The rate of a reaction can be determined experimentally.
Do you speak another language? Help me translate my videos:
http://www.bozemanscience.com/translations/
Music Attribution
Title: String Theory
Artist: Herman Jolly
http://sunsetvalley.bandcamp.com/track/string-theory
All of the images are licensed under creative commons and public domain licensing:
"File:Ammonia-3D-vdW.png." Wikipedia, the Free Encyclopedia. Accessed October 19, 2013. http://en.wikipedia.org/wiki/File:Ammonia-3D-vdW.png.
File:Crystal Violet in Aqueous Solution.jpg, n.d. http://en.wikipedia.org/wiki/File:Crystal_Violet_in_aqueous_solution.jpg.
"File:Nitric-oxide-3D-vdW.png." Wikipedia, the Free Encyclopedia. Accessed October 19, 2013. http://en.wikipedia.org/wiki/File:Nitric-oxide-3D-vdW.png.
"File:Nitrogen Dioxide at Different Temperatures.jpg." Wikipedia, the Free Encyclopedia. Accessed October 19, 2013. http://en.wikipedia.org/wiki/File:Nitrogen_dioxide_at_different_temperatures.jpg.
"File:Nitrogen-dioxide-3D-vdW.png." Wikipedia, the Free Encyclopedia. Accessed October 19, 2013. http://en.wikipedia.org/wiki/File:Nitrogen-dioxide-3D-vdW.png.
"File:Oxygen Molecule.png." Wikipedia, the Free Encyclopedia. Accessed October 19, 2013. http://en.wikipedia.org/wiki/File:Oxygen_molecule.png.
File:Spektrofotometri.jpg, n.d. http://en.wikipedia.org/wiki/File:Spektrofotometri.jpg.
Izmaelt. Slovenčina: Príprava Oxidu Dusičitého z Medi a Kyseliny Dusičnej. Fotené Na Slovenskej Technickej Univerzite., October 27, 2010. Own work. http://commons.wikimedia.org/wiki/File:Nitrogen_dioxide.jpg.
036 - The Rate Law
Paul Andersen explains how the rate law can be used to determined the speed of a reaction over time. Zeroth-order, first-order and second-order reactions are described as well as the overall rate law of a reaction. The rate of a reaction can be determined experimentally.
Do you speak another language? Help me translate my videos:
http://www.bozemanscience.com/translations/
Music Attribution
Title: String Theory
Artist: Herman Jolly
http://sunsetvalley.bandcamp.com/track/string-theory
All of the images are licensed under creative commons and public domain licensing:
"File:Ammonia-3D-vdW.png." Wikipedia, the Free Encyclopedia. Accessed October 19, 2013. http://en.wikipedia.org/wiki/File:Ammonia-3D-vdW.png.
File:Crystal Violet in Aqueous Solution.jpg, n.d. http://en.wikipedia.org/wiki/File:Crystal_Violet_in_aqueous_solution.jpg.
"File:Nitric-oxide-3D-vdW.png." Wikipedia, the Free Encyclopedia. Accessed October 19, 2013. http://en.wikipedia.org/wiki/File:Nitric-oxide-3D-vdW.png.
"File:Nitrogen Dioxide at Different Temperatures.jpg." Wikipedia, the Free Encyclopedia. Accessed October 19, 2013. http://en.wikipedia.org/wiki/File:Nitrogen_dioxide_at_different_temperatures.jpg.
"File:Nitrogen-dioxide-3D-vdW.png." Wikipedia, the Free Encyclopedia. Accessed October 19, 2013. http://en.wikipedia.org/wiki/File:Nitrogen-dioxide-3D-vdW.png.
"File:Oxygen Molecule.png." Wikipedia, the Free Encyclopedia. Accessed October 19, 2013. http://en.wikipedia.org/wiki/File:Oxygen_molecule.png.
File:Spektrofotometri.jpg, n.d. http://en.wikipedia.org/wiki/File:Spektrofotometri.jpg.
Izmaelt. Slovenčina: Príprava Oxidu Dusičitého z Medi a Kyseliny Dusičnej. Fotené Na Slovenskej Technickej Univerzite., October 27, 2010. Own work. http://commons.wikimedia.org/wiki/File:Nitrogen_dioxide.jpg.
Have you ever been to a Demolition Derby? Then you have an idea of how molecular collisions happen. In this episode, Hank talks about collisions between molecules and atoms, activation energy, writing rate laws, equilibrium expressions, reactions mechanics, and rate-determining steps. And funnel cakes are AWESOME!
Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App!
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Table of Contents
Collisions Between Molecules and Atoms 0:00
Activation Energy 1:32
Writing Rate Laws 3:28
Rate Laws and Equilibrium Expressions 5:30
Reaction Mechanisms 8:06
Rate-Determining Steps 7:04
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Who likes math! Oh, you don't? Maybe skip this one on kinetics. Unless you have to answer this stuff for class. Then yeah, watch this.
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In this video we'll look at:
- Some examples of reactions that happen at different rates
- The different ways we can calculate the rate of a reaction
- Some examples of calculating the rate of reaction using decimetres cubed and minutes (higher tier)
View full lesson: http://ed.ted.com/lessons/how-to-speed-up-chemical-reactions-and-get-a-date
The complex systems of high school dating and chemical reactions may have more in common than you think. Explore five rules for speeding up chemical reactions in the lab that might just land you a date to a dance!
Lesson by Mark Paricio & Aaron Sams, animation by Cognitive Media.
Rates of Reactions - Part 1 | Reactions | Chemistry | FuseSchool
In this video you are going to learn what the reaction rate is and some ways of measuring reaction rate.
Reaction rate is a measure of how quickly the reactants in a reaction change into the products of the reaction.
The rate of a chemical reaction can be measured in two ways:
1) The first way is to measure how quickly the reactants (the substances on the left of the arrow in the equation) decrease.
2) The second way is to measure how quickly the products (the substances on the right of the arrow in the equation) increase.
Example for 1: Measuring how quickly reactants decrease.
We will look at the reaction between marble chips (calcium carbonate) and hydrochloric acid.
As the reaction proceeds, the reactants lose mass because carbon dioxide gas is given off. We can measure the decrease in mass of reactants by using this type of apparatus with a conical flask stopwatch, cotton wool plug and balance.
Based on our measurements, we plot a graph of ‘mass of reactants against time’.
The rate of reaction at point A is given by the gradient at A which is y/x and the rate of reaction at point B is given by the gradient at point B which is y’/x’ .
Example for 2:
Instead of measuring the loss of mass of the reactant we can also measure the gain in volume of the product carbon dioxide.
Watch part 2 to learn more: https://www.youtube.com/watch?v=ExHV_cFWYSM
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This chemistry video tutorial provides a basic introduction into chemical kinetics. It explains how to calculate the average rate of disappearance of a reactant as well as how to identify the rate law expression using the initial rates method. It explains how to calculate the rate constant along with the appropriate units and how to calculate the initial rate of the reaction given the concentration of the reactants.
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This chemistry video tutorial discusses five factors affecting the rate of a reaction. This includes the nature of the reactants, concentration, surface area, temperature, and the use of a catalyst. This tutorial is part of the chemical kinetics series.
Chemical Kinetics - Free Formula Sheet:
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Chemistry 2 Final Exam Review:
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Chemical Kinetics - Initial Rate Method:
https://www.youtube.com/watch?v=oh4L2gcI5ds
Rate Constant k - Find The Units:
https://www.youtube.com/watch?v=1g-vDSWYins
Integrated Rate Laws - 1st & 2nd Order:
https://www.youtube.com/watch?v=7I0Xg92_eA4
Reaction Rate Factors:
https://www.youtube.com/watch?v=JpoOfrPKgmM
Collision Theory & Activation Energy:
https://www.youtube.com/watch?v=jX4dEOFwaLQ
___________________________________
Potential Energy Diagrams:
https://www.youtube.com/watch?v=HeKOb3efJmE
Elementary Rate Laws:
https://www.youtube.com/watch?v=S84Llf1vqiM
Rate Laws of Reaction Mechanisms:
https://www.youtube.com/watch?v=B1bWIrOe0SE
Intermediates & Catalysts:
https://www.youtube.com/watch?v=i_39q6N1sAs
Types of Catalysts:
https://www.youtube.com/watch?v=Tb0nzaj7bSA
____________________________________
The Equilibrium Expression:
https://www.youtube.com/watch?v=cmVuUFIaLW0
Calculating Kp From Kc:
https://www.youtube.com/watch?v=s0PnM_LlUp4
Chemical Equilibrium & Ice Tables:
https://www.youtube.com/watch?v=J4WJCYpTYj8
Le Chatelier's Principle:
https://www.youtube.com/watch?v=bNcTt3l3Q8k
Acids and Bases - Introduction:
https://www.youtube.com/watch?v=FM2MpMbV0rw
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036 - The Rate Law
Paul Andersen explains how the rate law can be used to determined the speed of a reaction over time. Zeroth-order, first-order and second-order reactions are described as well as the overall rate law of a reaction. The rate of a reaction can be determined experimentally.
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Music Attribution
Title: String Theory
Artist: Herman Jolly
http://sunsetvalley.bandcamp.com/track/string-theory
All of the images are licensed under creative commons and public domain licensing:
"File:Ammonia-3D-vdW.png." Wikipedia, the Free Encyclopedia. Accessed October 19, 2013. http://en.wikipedia.org/wiki/File:Ammonia-3D-vdW.png.
File:Crystal Violet in Aqueous Solution.jpg, n.d. http://en.wikipedia.org/wiki/File:Crystal_Violet_in_aqueous_solution.jpg.
"File:Nitric-oxide-3D-vdW.png." Wikipedia, the Free Encyclopedia. Accessed October 19, 2013. http://en.wikipedia.org/wiki/File:Nitric-oxide-3D-vdW.png.
"File:Nitrogen Dioxide at Different Temperatures.jpg." Wikipedia, the Free Encyclopedia. Accessed October 19, 2013. http://en.wikipedia.org/wiki/File:Nitrogen_dioxide_at_different_temperatures.jpg.
"File:Nitrogen-dioxide-3D-vdW.png." Wikipedia, the Free Encyclopedia. Accessed October 19, 2013. http://en.wikipedia.org/wiki/File:Nitrogen-dioxide-3D-vdW.png.
"File:Oxygen Molecule.png." Wikipedia, the Free Encyclopedia. Accessed October 19, 2013. http://en.wikipedia.org/wiki/File:Oxygen_molecule.png.
File:Spektrofotometri.jpg, n.d. http://en.wikipedia.org/wiki/File:Spektrofotometri.jpg.
Izmaelt. Slovenčina: Príprava Oxidu Dusičitého z Medi a Kyseliny Dusičnej. Fotené Na Slovenskej Technickej Univerzite., October 27, 2010. Own work. http://commons.wikimedia.org/wiki/File:Nitrogen_dioxide.jpg.
Here k(T) is the reaction rate constant that depends on temperature. [A] and [B] are the molar concentrations of substances A and B in moles per unit volume of solution, assuming the reaction is taking place throughout the volume of the solution. (For a reaction taking place at a boundary one would use instead moles of A or B per unit area).
The exponents m and n are called partial orders of reaction and are not generally equal to the stoichiometric coefficients a and b. Instead they depend on the reaction mechanism and can be determined experimentally.
In the diffusion of hydrogen atoms in different aggregation states, the comparison of the diffusion probability, reaction rate constant and diffusion coefficient of hydrogen as classical particle and ...
Study the equilibrium constant, Le Chatelier's principle and rate equations. Chemical kinetics involves understanding reaction rates and factors influencing them ... Study the classifications and reactions of polymerisation.
This results in a superb photoreaction quantum yield (FP, up to 98%), high second order rate constants (k2, up to 1974M−1 s−1), and notable oxygen tolerance for the PQ-ERA reaction system.
This results in a superb photoreaction quantum yield (FP, up to 98%), high second order rate constants (k2, up to 1974M−1 s−1), and notable oxygen tolerance for the PQ-ERA reaction system.
If the pH is too high, side reactions will occur that consume a certain amount of iodine, so iodine and water will not react in a 1.1 ratio; if the pH is too low, the KF reaction constant will decrease, resulting in a slower reaction rate.
a significant source of water that could be feeding this reaction. "It had to be something that can emit water for five years continuously at reasonably constant rates," Tarrio said.
The reaction rate depends on external conditions (pressure, temperature) ... "Similar to the way a pendulum swings from left to right and back again, the reaction rate oscillates between barely ...
Therefore, it was exposed to the counter-charged compounds to boost the reaction rate in water ... The reaction rate constant was increased 5 million times by the positive charge micelles.
"If you have POTS, your body is unable to balance the reaction of your heart rate and blood vessel constriction (squeezing). This signifies that your body is unable to maintain a constant and stable blood pressure level," says Dr Dang.
When using peristaltic or piston pumps to add expensive chemicals or other fluids into a reaction, labs must ensure the rate of addition is both accurate and constant as part of quality control.
Doctors use the phrase 'basal metabolic rate' (BMR) to refer to the lowest base level of energy needed for these constant chemical reactions to take place, but we commonly refer to this as metabolism.
During the gas-phase reaction process, the evaporation rate was well controlled to provide a constant metal source feed and facilitate the growth of non-layered 2D TMCs with thin thickness ... Explore further ... More information ... DOI ... Citation ... ....
... to be done or using highly inaccurate estimates of the rate of unstudied reactions ... Computational methods were used to compute the rate constants and to determine the expected reaction products.