The rate of a certain reaction was studied at various temperatures. The table shows temperature (?) and rate constant (?) data collected during the experiments. Plot the data to answer the questions. What is the value of the activation energy, ?a , for this reaction? ? (?) ? (?−1) 400 0.000278 420 0.00189 440 .0108 460 0.0532 480 0.229 500 0.878 520 3.03 540 9.56 560 27.8 580 74.9 ?a= ?kJ⋅mol−1 What is the value of the pre‑exponential factor (sometimes called the frequency factor), ?, for this reaction?
The rate of a certain reaction was studied at various temperatures. The table shows temperature (?) and rate constant (?) data collected during the experiments. Plot the data to answer the questions. What is the value of the activation energy, ?a , for this reaction? ? (?) ? (?−1) 400 0.000278 420 0.00189 440 .0108 460 0.0532 480 0.229 500 0.878 520 3.03 540 9.56 560 27.8 580 74.9 ?a= ?kJ⋅mol−1 What is the value of the pre‑exponential factor (sometimes called the frequency factor), ?, for this reaction?
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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The rate of a certain reaction was studied at various temperatures. The table shows temperature (?) and rate constant (?) data collected during the experiments. Plot the data to answer the questions.
What is the value of the activation energy, ?a , for this reaction?
| ? (?) | ? (?−1) |
|---|---|
| 400 | 0.000278 |
| 420 | 0.00189 |
| 440 | .0108 |
| 460 | 0.0532 |
| 480 | 0.229 |
| 500 | 0.878 |
| 520 | 3.03 |
| 540 | 9.56 |
| 560 | 27.8 |
| 580 | 74.9 |
?a= ?kJ⋅mol−1
What is the value of the pre‑exponential factor (sometimes called the frequency factor), ?, for this reaction?
?= ? s−1
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