E. (kJ mol¹) 110.18 1.10 x 102 CALCULATING KAT 25.0 *C Use the equation of the line to calculate the Arrhenius pre-exponential factor A for this reaction, then calculate the rate constant k at 25.0 °C. y=-1.3252 x10x+33.985 Unrounded value Rounded value (3 s.f.) A(81) 5.7478x1014 5.75 x 1014 k(s) at 25.0°C 2.8603 x10-5 2.86 × 10-5 By showing the algebra for combining the Arrhenius equation with the expression for the half-life of a reaction of order zero, one or two, you should convince yourself that a plot of In(1/2) vs. 1/T will have a slope of +(E,/R) as long as the half-life is inversely related to the rate constant. Use this information to answer the following question. Does the proportionality constant between half-life and inverse rate constant affect the slope of a plot of In(2) vs. 1/T?: No For many reactions near room temperature, the rate and the rate constant approximately double for a 10 °C rise in temperature. What is the value of activation energy in kJ mol for such a reaction? Given two values of T near room temperature that differ by 10 *C, calculate the activation energy, E. T₁(K) T₁₂(K) 298.15 308.15 Unrounded value Rounded value (3 s.f.) E.(kJ mol¹)
E. (kJ mol¹) 110.18 1.10 x 102 CALCULATING KAT 25.0 *C Use the equation of the line to calculate the Arrhenius pre-exponential factor A for this reaction, then calculate the rate constant k at 25.0 °C. y=-1.3252 x10x+33.985 Unrounded value Rounded value (3 s.f.) A(81) 5.7478x1014 5.75 x 1014 k(s) at 25.0°C 2.8603 x10-5 2.86 × 10-5 By showing the algebra for combining the Arrhenius equation with the expression for the half-life of a reaction of order zero, one or two, you should convince yourself that a plot of In(1/2) vs. 1/T will have a slope of +(E,/R) as long as the half-life is inversely related to the rate constant. Use this information to answer the following question. Does the proportionality constant between half-life and inverse rate constant affect the slope of a plot of In(2) vs. 1/T?: No For many reactions near room temperature, the rate and the rate constant approximately double for a 10 °C rise in temperature. What is the value of activation energy in kJ mol for such a reaction? Given two values of T near room temperature that differ by 10 *C, calculate the activation energy, E. T₁(K) T₁₂(K) 298.15 308.15 Unrounded value Rounded value (3 s.f.) E.(kJ mol¹)
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...
Related questions
Question
None
Transcribed Image Text:E. (kJ mol¹)
110.18
1.10 x 102
CALCULATING KAT 25.0 *C
Use the equation of the line to calculate the Arrhenius pre-exponential factor A for this reaction, then calculate the rate constant k
at 25.0 °C.
y=-1.3252 x10x+33.985
Unrounded value
Rounded value (3 s.f.)
A(81)
5.7478x1014
5.75 x 1014
k(s) at 25.0°C
2.8603 x10-5
2.86 × 10-5
By showing the algebra for combining the Arrhenius equation with the expression for the half-life of a reaction of order zero, one or
two, you should convince yourself that a plot of In(1/2) vs. 1/T will have a slope of +(E,/R) as long as the half-life is inversely related
to the rate constant. Use this information to answer the following question.
Does the proportionality constant between half-life and inverse rate constant affect the slope of a plot of In(2) vs. 1/T?:
No
For many reactions near room temperature, the rate and the rate constant approximately double for a 10 °C rise in temperature.
What is the value of activation energy in kJ mol for such a reaction? Given two values of T near room temperature that differ by 10
*C, calculate the activation energy, E.
T₁(K)
T₁₂(K)
298.15
308.15
Unrounded value
Rounded value (3 s.f.)
E.(kJ mol¹)
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 2 steps with 3 images
Recommended textbooks for you
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY