Kinetics of the Rapid Gas Phase Reaction between NO, NO_2, and H_2O
- Creators
- Wayne, Lowell G.
- Yost, Don M.
Abstract
Using the absorption of light by nitrogen dioxide as a measure of its concentration, the rate of the gas phase reaction NO+NO_2+H_2O=2HNO_2 was measured over a fivefold range of water vapor and nitrogen dioxide concentrations, with nitric oxide greatly in excess. Changes in light intensity were detected by means of an electron‐multiplier photo‐tube and recorded by photographing the screen of a cathode‐ray oscilloscope. Half‐times as short as 0.014 sec were observed. The reaction rate was found to depend more strongly upon the concentration of water vapor than upon that of nitrogen dioxide and to be kinetically consistent with a mechanism involving termolecular collisions. The equilibrium constant of the reaction has been calculated and its order of magnitude experimentally confirmed, and a lower limit has been fixed for the rate of dissociation of nitrogen sesquioxide.
Additional Information
© 1951 American Institute of Physics. Received 18 September 1950. We wish to express our great appreciation for the many helpful discussions with Dr. Oliver Wulf. We are grateful to Dr. Norman Davidson for general criticism. The work was supported in part by a grant from the Research Corporation, for which we are very grateful.Attached Files
Published - WAYjcp51.pdf
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Additional details
- Alternative title
- Kinetics of the Rapid Gas Phase Reaction between NO, NO2, and H2O
- Eprint ID
- 48259
- Resolver ID
- CaltechAUTHORS:20140808-152454693
- Research Corporation
- Created
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2014-08-08Created from EPrint's datestamp field
- Updated
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2021-11-10Created from EPrint's last_modified field