Pressure dependence of the rate constant for the reaction HO/sub 2/ + NO/sub 2/ + M. -->. HO/sub 2/NO/sub 2/ + M (M = N/sub 2/, O/sub 2/) at 298 K

Conference · Thu Jan 30 04:00:00 EST 1986 · J. Phys. Chem.; (United States)

OSTI ID:5816254

Kurylo, M J; Ouellette, P A

The pressure dependence at 298 K of the rate constant for the combination reaction between HO/sub 2/ and NO/sub 2/ was investigated by flash photolysis kinetic absorption spectroscopy. Measurements were made at N/sub 2/ and O/sub 2/ pressures ranging from 25 to 600 torr and the data were fit to an expression suitable for describing the pressure dependence of reactions in the falloff region. Potential sources of error in these measurements are discussed. The present results are compared to earlier measurements of this reaction system and their importance with respect to atmospheric chemistry is detailed. 15 references, 5 figures, 2 tables.

• Research Organization: National Bureau of Standards, Gaithersburg, MD
• OSTI ID: 5816254
• Conference Information: Journal Name: J. Phys. Chem.; (United States) Journal Volume: 90:3
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ABSORPTION SPECTROSCOPY
CHALCOGENIDES
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
DATA
DECOMPOSITION
ELEMENTS
EXPERIMENTAL DATA
HYDROGEN COMPOUNDS
HYDROPEROXY RADICALS
INFORMATION
INORGANIC ACIDS
MEDIUM TEMPERATURE
MEETINGS
NITRIC ACID
NITROGEN
NITROGEN COMPOUNDS
NITROGEN DIOXIDE
NITROGEN OXIDES
NONMETALS
NUMERICAL DATA
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHOTOLYSIS
PRESSURE DEPENDENCE
PULSES
RADICALS
SPECTROSCOPY
YIELDS