Question 9: A reaction has a first order rate constant of 6.15x10-5 s¹ at 25 °C and 0.00227 s¹ at 75 °C. What is the value of the rate constant at 53 °C? Enter your answer in units of s-¹, accurate to three significant figures. Do not include units as part of your answer. For example, enter 1.23x10-³ as 1.23e-3.

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Chapter1: Chemical Foundations
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Question 9:
A reaction has a first order rate constant of 6.15x10-5 s¹ at 25 °C and 0.00227 s¹ at 75 °C. What is the value of the rate constant at 53 °C?
Enter your answer in units of s-¹, accurate to three significant figures. Do not include units as part of your answer. For example, enter 1.23x10-³ as 1.23e-3.
Question 10:
A catalyst decreases the activation energy of a given reaction by exactly 11 kJ mol. By what factor does the rate constant increase at 25 °C when the catalyst is used? Assume that the Arrhenius pre-exponential factor, A, is the same for the catalyzed and uncatalyzed
reactions.
Enter your answer accurate to three significant figures. Do not include units as part of your answer. For example, enter 1.23x10-³ as 1.23e-3.)
Transcribed Image Text:Question 9: A reaction has a first order rate constant of 6.15x10-5 s¹ at 25 °C and 0.00227 s¹ at 75 °C. What is the value of the rate constant at 53 °C? Enter your answer in units of s-¹, accurate to three significant figures. Do not include units as part of your answer. For example, enter 1.23x10-³ as 1.23e-3. Question 10: A catalyst decreases the activation energy of a given reaction by exactly 11 kJ mol. By what factor does the rate constant increase at 25 °C when the catalyst is used? Assume that the Arrhenius pre-exponential factor, A, is the same for the catalyzed and uncatalyzed reactions. Enter your answer accurate to three significant figures. Do not include units as part of your answer. For example, enter 1.23x10-³ as 1.23e-3.)
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