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The equilibrium constant for N2O5 = NO2 + NO3 - Absolute determination by direct measurement from 243 to 397 KDirect determinations of the equilibrium constant for the reaction N2O5 = NO2 + NO3 were carried out by measuring NO2, NO3, and N2O5 using long-path visible and infrared absorption spectroscopy as a function of temperature from 243 to 397 K. The first-order decay rate constant of N2O5 was experimentally measured as a function of temperature. These results are in turn used to derive a value for the rate coefficient for the NO-forming channel in the reaction of NO3 with NO2. The implications of the results for atmospheric chemistry, the thermodynamics of NO3, and for laboratory kinetics studies are discussed.
Document ID
19880047730
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Cantrell, C. A.
(NASA Headquarters Washington, DC United States)
Davidson, J. A.
(NASA Headquarters Washington, DC United States)
Mcdaniel, A. H.
(NASA Headquarters Washington, DC United States)
Shetter, R. E.
(NASA Headquarters Washington, DC United States)
Calvert, J. G.
(National Center for Atmospheric Research Boulder, CO, United States)
Date Acquired
August 13, 2013
Publication Date
April 15, 1988
Publication Information
Publication: Journal of Chemical Physics
Volume: 88
ISSN: 0021-9606
Subject Category
Atomic And Molecular Physics
Accession Number
88A34957
Funding Number(s)
CONTRACT_GRANT: NASA ORDER W-16042
Distribution Limits
Public
Copyright
Other

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