Shock tube study of the reaction H + O sub 2 yields OH + O using OH laser absorption

Journal Article · Thu Sep 06 04:00:00 EDT 1990 · Journal of Physical Chemistry; (United States)

DOI:https://doi.org/10.1021/j100381a033· OSTI ID:5404851

Masten, D A; Hanson, R K; Bowman, C T ^[1]

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1. Stanford Univ., CA (USA)

Mixtures of hydrogen and oxygen dilute in argon were heated by both incident and reflected shock waves to measure the rate coefficient of the H{sub 2}/O{sub 2} mechanism branching reaction H + O{sub 2} {yields} OH + O (2) in the temperature range 1,450-3,370 K. Time histories of OH(X{sup 2}II) were monitored by using narrow-line-width laser absorption at 306.7 nm. A detailed kinetic analysis of the data in rich mixtures yielded the following rate coefficient expression: k{sub 2} = (9.33 {plus minus} 0.40) {times} 10{sup 13} exp({minus}(14,800 {plus minus} 170) cal mol{sup {minus}1}/RT, K) cm{sup 3} mol{sup {minus}1} s{sup {minus}1}.

• OSTI ID: 5404851
• Journal Information: Journal of Physical Chemistry; (United States), Journal Name: Journal of Physical Chemistry; (United States) Vol. 94:18; ISSN 0022-3654; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400800* -- Combustion
Pyrolysis
& High-Temperature Chemistry
ABSORPTION SPECTROSCOPY
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COMBUSTION
COMBUSTION KINETICS
ELEMENTS
HYDROGEN
HYDROXYL RADICALS
KINETICS
NONMETALS
OXIDATION
OXYGEN
RADICALS
REACTION KINETICS
SHOCK TUBES
SPECTROSCOPY
THERMOCHEMICAL PROCESSES
VERY HIGH TEMPERATURE