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Mass‐spectrometric determination of product branching probabilities for the NH 2 + NO 2 reaction at temperatures between 300 and 990 K
Author(s) -
Park J.,
Lin M. C.
Publication year - 1996
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/(sici)1097-4601(1996)28:12<879::aid-kin3>3.0.co;2-k
Subject(s) - chemistry , branching (polymer chemistry) , yield (engineering) , branching fraction , mass spectrometry , kinetic energy , analytical chemistry (journal) , reaction rate constant , atmospheric temperature range , product (mathematics) , thermodynamics , kinetics , organic chemistry , chromatography , atomic physics , physics , quantum mechanics , geometry , mathematics
The product branching ratio, α, for N 2 O formation in the reaction of NH 2 with NO 2 has been studied by mass spectrometry at seven temperatures between 300 and 990 K. The value of α was determined by kinetic modeling of the absolute yield of N 2 O. α was found to be 0.19 ± 0.02 without significant temperature dependence, assuming the total rate constant for NH 2 + NO 2 to be k t = 1.8 × 10 −12 × T 0.11 exp (+ 597/T) cm 3 /molecule·s in the temperature range studied. The effect of k t on α has been discussed. © 1996 John Wiley & Sons, Inc. Inc.