The rate of a certain reaction was studied at various T(K) k (s-1) temperatures. The table shows temperature (T) and rate 400 0.0000173 constant (k) data collected during the experiments. Plot the 420 0.000127 data to answer the questions. What is the value of the activation energy, Ea, for 440 0.000773 460 0.00403 this reaction? 480 0.0183 500 0.0738 Ea = kJ · mol-! 520 0.267 540 0.879 560 2.66 What is the value of the pre-exponential factor (sometimes 580 7.43 called the frequency factor), A , for this reaction? A = s-1
The rate of a certain reaction was studied at various T(K) k (s-1) temperatures. The table shows temperature (T) and rate 400 0.0000173 constant (k) data collected during the experiments. Plot the 420 0.000127 data to answer the questions. What is the value of the activation energy, Ea, for 440 0.000773 460 0.00403 this reaction? 480 0.0183 500 0.0738 Ea = kJ · mol-! 520 0.267 540 0.879 560 2.66 What is the value of the pre-exponential factor (sometimes 580 7.43 called the frequency factor), A , for this reaction? A = s-1
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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Transcribed Image Text:The rate of a certain reaction was studied at various
T(K)
k (s-1)
temperatures. The table shows temperature (T) and rate
400
0.0000173
constant (k) data collected during the experiments. Plot the
420
0.000127
data to answer the questions.
What is the value of the activation energy, Ea, for
440
0.000773
460
0.00403
this reaction?
480
0.0183
500
0.0738
Ea
kJ · mol-1
520
0.267
540
0.879
560
2.66
What is the value of the pre-exponential factor (sometimes
580
7.43
called the frequency factor), A , for this reaction?
A =
s-1
Expert Solution
Step 1
The expression of Arrhenius equation is shown below:
Where;
k = rate constant
A = Arrhenius constant
Ea = activation energy
R = gas constant
T = temperature
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