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:
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:
Organic Chemistry
8th Edition
ISBN:9781305580350
Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Chapter10: Alcohols
Section: Chapter Questions
Problem 10.50P
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Transcribed Image Text: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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