Answered: (a) The reaction A(aq) → B(aq) is a…

Chemistry & Chemical Reactivity

9th Edition

ISBN:9781133949640

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 12PS: The reaction 2 NO(g) + 2 H2(g) N2(g) + 2 H2O(g) was studied at 904 C, and the data in the table...

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(a) The reaction A(aq) → B(aq) is a fifirst order reaction with respect to A(aq). The concentration of A(aq) after 100.0 s of reaction is 0.777 M. The concentration of A(aq) after 300.0 s is 0.333M. At what time will the concentration of A(aq) be equal to 0.222 M? The temperature is 25.0 ◦C throughout.

(b) The reaction 2 A(aq) → B(aq) + C(aq) is a second order reaction with respect to A(aq).

When the concentration of A(aq) is 0.200 M and the temperature is 25.0 ◦C, the rate of reaction

is 0.00100 M/s. When we increase the concentration of A(aq) to 0.600 M and we increase the

temperature to 50.0 ◦C, the rate of reaction is 0.06300 M/s. What is the activation energy for this

reaction?

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