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The equilibrium constant for N2O5 = NO2 + NO3 - Absolute determination by direct measurement from 243 to 397 K
The equilibrium constant for N2O5 = NO2 + NO3 - Absolute determination by direct measurement from 243 to 397 K
- Source :
- Journal of Chemical Physics. 88
- Publication Year :
- 1988
- Publisher :
- United States: NASA Center for Aerospace Information (CASI), 1988.
-
Abstract
- Direct 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.
- Subjects :
- Atomic And Molecular Physics
Subjects
Details
- Language :
- English
- ISSN :
- 00219606
- Volume :
- 88
- Database :
- NASA Technical Reports
- Journal :
- Journal of Chemical Physics
- Notes :
- NASA ORDER W-16042
- Publication Type :
- Report
- Accession number :
- edsnas.19880047730
- Document Type :
- Report
- Full Text :
- https://doi.org/10.1063/1.454679