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Rate constants of elementary reactions in the high temperature system of nitric oxide and hydrogen
Author(s) -
Ando H.,
Asaba T.
Publication year - 1976
Publication title -
international journal of chemical kinetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.341
H-Index - 68
eISSN - 1097-4601
pISSN - 0538-8066
DOI - 10.1002/kin.550080208
Subject(s) - chemistry , nitric oxide , branching (polymer chemistry) , reaction rate constant , hydrogen , argon , nitric acid , analytical chemistry (journal) , medicinal chemistry , inorganic chemistry , kinetics , organic chemistry , physics , quantum mechanics
The consumption of nitric oxide in the shock‐heated nitric oxide, hydrogen, and argon system had been studied and modeled as the chain‐branching process containing the reaction H + NO ⇀ N + OH ( k 3 ) as a slow‐branching step. Through the computer simulation method the authors clarified the role of the initiation reaction H 2 + NO ⇀ HNO + H ( k 1 ) in the system and obtained the rate constants of k 1 and k 3 as k 1 = 10 13.5±0.15 exp (−55.2 kcal/ RT ) and k 3 = 10 13.7±0.15 exp (−48.7 kcal/ RT ) (cm 3 /mole·sec), respectively. k 1 was one order larger than the value obtained in the flame experiment by Halstead and Jenkins.