Kinetics of the reaction OH + NH sub 3 in the range 273-433 K
Journal Article
·
· Journal of Physical Chemistry; (USA)
- National Tsing Hua Univ., Hsinchu (Taiwan)
The kinetics of the reaction OH + NH{sub 3} have been studied by means of the flash photolysis/laser-induced fluorescence technique. The rate of this reaction was investigated in the range 273-433 K under more extensive conditions (68 < P/Torr < 504, 0.29 < (NH{sub 3})/10{sup 15} molecules cm{sup {minus}3} < 36.1) than previously. The results from experiments with the Xe lamp and with the KrF laser for photolysis agree well within the experimental uncertainties, indicating the absence of interference due to excess NH{sub 2} laser for photolysis agree well within the experimental uncertainties, indicating the absence of interference due to excess NH{sub 2} which was produced by photolysis with the Xe lamp. A fit of rate coefficients to the Arrhenius equation yields k = (3.29 {plus minus} 1.02) {times} 10{sup {minus}12} exp({minus}(922 {plus minus} 100)/T) cm{sup 3} molecule{sup {minus}1} s{sup {minus}1}, with k = (1.47 {plus minus} 0.07) {times} 10{sup {minus}13} cm{sup 3} molecule{sup {minus}1} s{sup {minus}1} at 297 K; the uncertainties represent one standard error.
- OSTI ID:
- 6513998
- Journal Information:
- Journal of Physical Chemistry; (USA), Journal Name: Journal of Physical Chemistry; (USA) Vol. 94:13; ISSN 0022-3654; ISSN JPCHA
- Country of Publication:
- United States
- Language:
- English
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Book
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OSTI ID:93249
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· Journal of Chemical Physics; (USA)
·
OSTI ID:5556156
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Thu Jul 01 00:00:00 EDT 1999
· Journal of Physical Chemistry A: Molecules, Spectroscopy, Kinetics, Environment, amp General Theory
·
OSTI ID:677953
Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400500 -- Photochemistry
54 ENVIRONMENTAL SCIENCES
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
AMMONIA
ATMOSPHERIC CHEMISTRY
CHEMISTRY
DATA
DATA ANALYSIS
EXPERIMENTAL DATA
HYDRIDES
HYDROGEN COMPOUNDS
HYDROXYL RADICALS
INFORMATION
KINETICS
MEASURING INSTRUMENTS
MEASURING METHODS
MEDIUM TEMPERATURE
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NUMERICAL DATA
RADICALS
REACTION KINETICS
400500 -- Photochemistry
54 ENVIRONMENTAL SCIENCES
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
AMMONIA
ATMOSPHERIC CHEMISTRY
CHEMISTRY
DATA
DATA ANALYSIS
EXPERIMENTAL DATA
HYDRIDES
HYDROGEN COMPOUNDS
HYDROXYL RADICALS
INFORMATION
KINETICS
MEASURING INSTRUMENTS
MEASURING METHODS
MEDIUM TEMPERATURE
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NUMERICAL DATA
RADICALS
REACTION KINETICS