Arrhenius Equation Activation Energy and Rate Constant K Explained
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- Опубликовано: 12 июл 2016
- This chemistry video tutorial focuses on the Arrhenius equation and how to derive it's many different forms within the subject of chemical kinetics.
Activation Energy & Collision Theory - 1 Hour 30 Minute Video on Patreon:
/ mathsciencetutor
Printable PDF Worksheet With 13 Questions on Patreon:
bit.ly/3WT5rlA
Direct Link to The Activation Energy & Collision Theory Video on Patreon:
bit.ly/3k4vtUk
Here is a list of topics:
1. Arrhenius Equation and the Rate Constant K
2. The units of R and the activation energy
3. Rate law expression and the concentration of reactant A
4. Frequency Factor, Collision Frequency and Steric Factor
5. Rate of Reaction, Rate Constant K, and Activation Energy
6. The Effect of a Catalyst on Activation Energy and Reaction Rate
7. Slope, Ea, and R
8. Slope Intercept Form Linear Arrhenius Equation
9. Factors Affecting the rate of the reaction - concentration, temperature, catalyst, activation energy and rate constant K
10. Arrhenius Equation / Formula Graph
Chemistry - Basic Introduction: • Chemistry
Stoichiometry Practice Problems: • How To Solve Stoichiom...
Molarity, Molality, Density, & Mass %: • Molarity, Molality, Vo...
Vapor Pressure & Clausius Equation: • Vapor Pressure - Norma...
Raoult's Law - Vapor Pressure: • Raoult's Law - How To ...
Colligative Properties: • Colligative Properties...
General Chemistry 1 Final Exam Review: • General Chemistry 1 Re...
_______________________________________________________________________________________________
Chemical Kinetics - Initial Rate Method: • Chemical Kinetics - In...
Integrated Rate Laws - 1st & 2nd Order: • Integrated Rate Laws -...
Reaction Rate Factors: • Factors Affecting the ...
Collision Theory & Activation Energy: • Collision Theory - Arr...
Potential Energy Diagrams: • Endothermic and Exothe...
Elementary Rate Laws: • Elementary Rate Laws -...
Rate Laws of Reaction Mechanisms: • Writing Rate Laws of R...
Intermediates & Catalysts: • How To Identify The In...
Types of Catalysts: • Homogeneous vs Heterog...
_______________________________________________________________________________________________
The Equilibrium Expression: • How To Write The Equil...
Calculating Kp From Kc: • How To Calculate Kp Fr...
Chemical Equilibrium & Ice Tables: • Chemical Equilibrium C...
Le Chatelier's Principle: • Le Chatelier's Principle
_______________________________________________________________________________________________
Acids and Bases - Introduction: • Acids and Bases - Basi...
The 7 Strong Acids to Memorize: • How To Memorize The St...
Conjugate Acid-Base Pairs: • Conjugate Acid Base Pa...
pH and pOH Calculations: • pH, pOH, H3O+, OH-, Kw...
Estimate The pH Without a Calculator: • How To Calculate The p...
Autoionization of Water - Kw: • AutoIonization of Wate...
Which Acid Is Stronger? • Acid Base Strength - W...
Acidic, Basic, & Neutral Salts: • Acidic, Basic, and Neu...
pH of Weak Acids: • pH of Weak Acids and B...
Buffer Solutions: • Buffer Solutions
Polyprotic Acid Base Equilibria: • Polyprotic Acid Base E...
Acid Base Titration Curves: • Acid Base Titration Cu...
Acids and Bases - Practice Test: • Acids and Bases Review...
______________________________________________________________________________________________
SAT Chemistry Subject Test Review: • SAT Chemistry Subject ...
General Chemistry 2 Final Exam Review: • General Chemistry 2 Re...
Full 1 Hour 30 Minute Video: www.patreon.com/MathScienceTutor
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Direct Link to The Full Video: bit.ly/3k4vtUk
Final Exams and Video Playlists: www.video-tutor.net/
Please note that at 13:59, the equation should be 1/T2 - 1/T1
Thanks for clarifying for I was wondering about that. If it was 1/T1-1/T2 there'd be no minus in front of (Ea/R)x(1/T1-1/T2). Correct?
correct
I thought that was right when you apply that negative to the inside values?
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Naah you wrote correct it will be t1 only it’s in Cengel books too
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I didn’t know how to solve for K in my mid-term and now I’m prepared for it if it’s in my exams!!! Thank you!
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Does anyone know how to measure K(T) from DSC data? Thanks
According to the arrhenius equation the units of A should be the same as that of K but we know that the units of K depend on the order of the reaction while the units of A are (time^-1) so how do we explain this?
hey so i wanna ask can we use thing one to calculate all Ks in different types of rate of reactions
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what actually is ln(K) on the graph if i was to plot the epoxy cured in DSC ? Is this second derivative of heating rate?
Sir if you have the values of k and the temperature, and you are asked to graph then find the slope and after we are asked to find the ln A sir what to do?
Bro thank you but im really dumb to get it that fast maybe i will process it 1 at a time but you explained it very well. Much love!
I highly doubt Ill get an answer right now, but how do you derive the t90 value from T1and T2 and K1 and Ea??
Thank you so much. For some reason it dawned to me how Arrhenius Eqn is so similar to Clausius Clapeyron one.
the best ever explanation
thank you so much
Does anyone know what is the reaction that its rate decrease with increasing the temperature? and which one is it?
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Segment at 8:43 was brill! Cheers
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Sir, can i get reply, actually what i need to understand that from where we can get the value of k constant when we have value of temp, temprature rate and change in concentration of reactants and products, but don,t have value of A( frequency) , Ea ( activation energy) etc, as to get value of Ea by process u told us in video we must have the value of k constant first. How to measure it please.
Thanks, good explanation
can anybody please explain me the part from 3:10 - 3:22 .is he saying that since its numerator is an exponent and negative it will give an inverse value which will decrease the rate? thank you in advance and good videos btw keep it up,bro. :)
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Please what what happened to the lnA before comparing with the equation of the line
at 5:45, when conc. of A increase, won't collision frequency of A molecules increases (Z increase), hence a larger value of k i.e. rate constant?
so helpful
Qustion, what are the 2 kind of activations energy?
Can u solve this one
Lnr2/r1=E/R(1/T1-1/T2)
Thank you ....but If I have K values (e.g: 4.7 x 10^-5......2.0 x 10^-3......3.0 x 10^-2 ......etc)How could I represent it on graph ......can any one HELP please ????
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can anyone answer me please. Can InK be the pressure(kPa)?
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Is we taking capital log in the formula for activation energy In the place of natural log if not then why
wtf is a capital log?
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ITS INDEED VERY HELPFUL THANK YOU
perfect!
if Ea = - R*slope, what is the unit of the Ea? it confuses me, because slope doesn't have unit, but R's unit is J mol-1 K-1 (8.314 J mol-1 k-1)
when you are calculating something in the exponential term, the units should all cancel because it should be unitless, just keep that in mind.
really nise
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Thank you! This was really helpful! :)
How can you solve for k1
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13:37 (1/T2 - 1/T1)
Super good dear
That's nice
Please solve some Questions under the Arrhenius Equation problems. 🙏
same request
So what happens to lnA?
cheers boss
You have different equations for K2 which is really confusing me. 13:59 its (1/T1-1/T2) and at the end its (1/T2-1/T1). Which is correct?
Did algebra myself and its t2-t1. Good to note that is wrong and leave a caption tho
Thanks for letting me know.
Joseph Allande ...due to this changes sign will change....this is right
Thanks bro, you explained it better than my Prof. This is good, but somehow also very sad...
Can Ea be negative or zero
Can someone please calculate the activation energy needed to produce H2 gas from urea compared to the energy produced by burning H2 to produce H2O. I'm trying to figure out if burning H2 gas releases more energy than is consumed. I'm pretty sure it produces a positive energy gain. I've heard that urea is good for producing H2 gas because it takes less energy to split a urea molecule than it does to split a water molecule. I'm not trying to be lazy, I just don't understand where to get the figures to plug into the equation for each element. Maybe I don't understand it at all, I'm sure someone will tell me. Once you get the fuel mixture right it will be possible to run your car or whatever you want to run on H2 gas using your urine. Thank you.
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