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The OH( v = 9) + O 3 reaction pathway
Author(s) -
Slanger T. G.,
Huestis D. L.
Publication year - 1985
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.550170702
Subject(s) - chemistry , kinetics , branching (polymer chemistry) , torr , ozone , chain reaction , hydrogen , decomposition , oxygen , chemical kinetics , oxygen atom , atomic oxygen , photochemistry , thermodynamics , molecule , organic chemistry , physics , quantum mechanics
The oxygen‐hydrogen system, including the reactive species H, O, H 2 , O 2 , O 3 , OH, and HO 2 , is very complex, and contains numerous reactions whose kinetics and branches have been insufficiently explored. In the present study we use computer modeling to simulate observations made in a 300‐K ozone‐hydrogen mixture, in which a critical H 2 pressure leads to rapid ozone decomposition, and generation of high concentrations of atomic oxygen. Initiation of the reaction chain involves heterogeneous O and/or H atom production, and the chain branching step is the reaction OH( v ) + O 3 → OH + O + O 2 , which is shown to be the predominant pathway for these reactants. The critical H 2 pressure (ca. 3 torr) sets important constraints upon the system kinetics.