Correct Part B Another first-order reaction also has a rate constant of 2.05x10-2 s-1 at 24 °C. What is the value of k at 58 °C if Ea = 125 kJ/mol ? Express your answer using two significant figures. ? k = 9.0 Submit Previous Answers Request Answer X Incorrect; Try Again; 18 attempts remaining
Correct Part B Another first-order reaction also has a rate constant of 2.05x10-2 s-1 at 24 °C. What is the value of k at 58 °C if Ea = 125 kJ/mol ? Express your answer using two significant figures. ? k = 9.0 Submit Previous Answers Request Answer X Incorrect; Try Again; 18 attempts remaining
Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter14: Chemical Kinetics: The Rates Of Chemical Reactions
Section: Chapter Questions
Problem 80GQ: A The compound 1,3-butadiene (C4H6) forms 1,5-cyclooctadiene, C8H12 at higher temperatures. C4H6(g) ...
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Part b please
Transcribed Image Text:A certain first-order reaction has a rate constant of 2.05×10-2 s1 at 24 °C. What is the value of k at 58 °C if E. = 71.0 kJ/mol ?
Express your answer using two significant figures.
k = 0.39 s1
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Part B
Another first-order reaction also has a rate constant of 2.05×10-2 s1 at 24 °C. What is the value of k at 58 °C if Eq = 125 kJ/mol ?
Express your answer using two significant figures.
V ΑΣφ
?
k = 9.0
Submit
Previous Answers Request Answer
X Incorrect; Try Again; 18 attempts remaining
Expert Solution
Step 1
Given that, a First order reaction has
Temperature T1 = 24°C = 297 K
Rate constant k1 at T1 = 2.05×10-2 s-1
activation energy = 125 KJ/mol
And temperature T2 = 58°C = 331 K
Rate constant k at T2 = to be calculated.
Arrhenius equation for the rate constant k1k can be written as:
k1 = Ae-Ea/RT1 ... (1)
and for the rate constant k can be written as;
k = Ae-Ea/RT2 ... (2)
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