Physical Chemistry
2nd Edition
ISBN: 9781133958437
Author: Ball, David W. (david Warren), BAER, Tomas
Publisher: Wadsworth Cengage Learning,
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Question
Chapter 20, Problem 20.66E
Interpretation Introduction
Interpretation:
The value of the rate constant at
Concept introduction:
The Arrhenius equation gives the temperature dependence of reaction rates.
Where,
•
•
•
•
•
The pre-exponential factor is also known as the frequency factor or the steric factor.
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What is the activation energy for a reaction if k = 1.89 × 10–1 s–1 at 541 Kelvin and k = 7.31 s–1 at 601 Kelvin, in kJ/mol? Report an integer value, without units.
A particular second-order reaction has a rate constant of 2.4 x 10–6 M–1 s–1 at 575 K and 6.0 x 10–5 M–1 s–1 at 630 K.
(a) Calculate the activation energy of the reaction.
(b) What is the value of the rate constant at 25°C?
How does the value of k vary with temperature? Explain why this happens in terms of the activation energy.
Chapter 20 Solutions
Physical Chemistry
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Kinetics: Initial Rates and Integrated Rate Laws; Author: Professor Dave Explains;https://www.youtube.com/watch?v=wYqQCojggyM;License: Standard YouTube License, CC-BY