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Kinetics of the reaction HO2 + NO2 + M yields HO2NO2 + MThe flash photolysis/ultraviolet absorption technique was used to measure the rate constants for the reaction HO2 + NO2 + M yields HO2NO2 + M over the pressure range 50-700 torr and temperature range 229-362 K using He, O2, and N2 as diluent gases. The data were fit to the expression derived by Troe (1979) and co-workers for describing the pressure and temperature dependence of reactions in the falloff region. By combining these data with recent measurements of the rate constant for HO2NO2 thermal decomposition values of 73.8 + or - 2 eu for the standard entropy and -12.6 + or - kcal/mol for the standard enthalpy of formation of HO2NO2 were obtained. A significant enhancement in the rate constant was observed when water vapor was added to the system.
Document ID
19840062888
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Sander, S. P.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Peterson, M. E.
(California Institute of Technology, Jet Propulsion Laboratory, Pasadena CA, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1984
Publication Information
Publication: Journal of Physical Chemistry
Volume: 88
ISSN: 0022-3654
Subject Category
Inorganic And Physical Chemistry
Accession Number
84A45675
Distribution Limits
Public
Copyright
Other

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