EXAMPLE 13.4 The conversion of cyclopropane to propene in the gas phase is a first-order reaction with a rate constant of 6.7 × 10~ª s¬1 at 500°C. CH2 → CH3-CH=CH2 CH,-CH2 cyclopropane propene (a) If the initial concentration of cyclopropane was 0.25 M, what is the concentration after 8.8 min? (b) How long (in minutes) will it take for the concentration of cyclopropane to decrease from 0.25 M to 0.15 M? (c) How long (in minutes) will it take to convert 74 percent of the starting material?
EXAMPLE 13.4 The conversion of cyclopropane to propene in the gas phase is a first-order reaction with a rate constant of 6.7 × 10~ª s¬1 at 500°C. CH2 → CH3-CH=CH2 CH,-CH2 cyclopropane propene (a) If the initial concentration of cyclopropane was 0.25 M, what is the concentration after 8.8 min? (b) How long (in minutes) will it take for the concentration of cyclopropane to decrease from 0.25 M to 0.15 M? (c) How long (in minutes) will it take to convert 74 percent of the starting material?
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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provide the given, required, and do the cancellations.
Transcribed Image Text:EXAMPLE 13.4
The conversion of cyclopropane to propene in the gas phase is a first-order reaction
with a rate constant of 6.7 × 10~* s¬1 at 500°C.
CH2
→ CH3-CH=CH2
CH,-CH2
cyclopropane
propene
(a) If the initial concentration of cyclopropane was 0.25 M, what is the concentration
after 8.8 min? (b) How long (in minutes) will it take for the concentration of
cyclopropane to decrease from 0.25 M to 0.15 M? (c) How long (in minutes) will it
take to convert 74 percent of the starting material?
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