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2. (Similar to Atkins, Exercise E17B.3(b)) The rate constant for the first-order isomerization reaction of gaseous cyclopropane to form propene k, = 6.71x10-4 sec-1. a. What is the half-life of cyclopropane ? b. What will be the partial pressure of cyclopropane, initially at 33.0 kPa after 10.0 minutes? c. What will be the partial pressure after 2.25 hours ?

2. (Similar to Atkins, Exercise E17B.3(b)) The rate constant for the first-order isomerization reaction of gaseous cyclopropane to form propene k, = 6.71x10-4 sec-1. a. What is the half-life of cyclopropane ? b. What will be the partial pressure of cyclopropane, initially at 33.0 kPa after 10.0 minutes? c. What will be the partial pressure after 2.25 hours ?

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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
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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2. (Similar to Atkins, Exercise E17B.3(b)) The rate constant for the first-order isomerization reaction of gaseous cyclopropane to form propene k, = 6.71x10-4 sec-¹. a. What is the half-life of cyclopropane ? b. What will be the partial pressure of cyclopropane, initially at 33.0 kPa after 10.0 minutes? c. What will be the partial pressure after 2.25 hours ?
Transcribed Image Text:2. (Similar to Atkins, Exercise E17B.3(b)) The rate constant for the first-order isomerization reaction of gaseous cyclopropane to form propene k, = 6.71x10-4 sec-¹. a. What is the half-life of cyclopropane ? b. What will be the partial pressure of cyclopropane, initially at 33.0 kPa after 10.0 minutes? c. What will be the partial pressure after 2.25 hours ?
Expert Solution
Step 1

The first-order rate expression is given as:

k = 2.303tlogaa-x 

Where, k = rate constant, t= time, a= initial concentration and (a-x) = concentration at time t

Half-life is the time required to complete half (50 % ) of the reaction.

Half-life of first order reaction is related to rate constant as: t1/2 =0.693k

 

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