NH3 is used as an agent for NO reduction in the temperature range of about 1,000 K. Themechanism for NO reduction by NH; contains the following reaction steps:NH3 + OHNH2 + H2O(RI)NH2 + NO – N2 + H+ OH(R2)NH, + NO – N, + H,O(R3)H+02 -0+ OH(R4)O+ H2O → OH+ OH(R5)Show that the above process runs away when the (branching) ratio of the rate of the branchingreaction (R2) over that of the termination reaction (R3) exceeds the critical value of 1/3. Assumethat NH2, H, and O are in steady state.

The objective of this question os to explain the details of each reaction step, show on the…

Answered: NH, is used as an agent for NO…

NH, is used as an agent for NO reduction in the temperature range of about 1,000 K. The mechanism for NO reduction by NH3 contains the following reaction steps:

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

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Question

NH3 is used as an agent for NO reduction in the temperature range of about 1,000 K. The
mechanism for NO reduction by NH; contains the following reaction steps:
NH3 + OH
NH2 + H2O
(RI)
NH2 + NO – N2 + H+ OH
(R2)
NH, + NO – N, + H,O
(R3)
H+02 -0+ OH
(R4)
O+ H2O → OH+ OH
(R5)
Show that the above process runs away when the (branching) ratio of the rate of the branching
reaction (R2) over that of the termination reaction (R3) exceeds the critical value of 1/3. Assume
that NH2, H, and O are in steady state.

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