Photochemical Studies. XXVII. The Effect of Radiation on Mixtures of Nitrogen Dioxide and Nitrous Oxide and its Relationship to the Photochemical Decomposition of Nitrous Oxide
- 1 September 1938
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 6 (9) , 518-522
- https://doi.org/10.1063/1.1750304
Abstract
Oxygen atoms were produced in NO2–N2O mixtures by the photochemical decomposition of NO2 alone. No reaction of these atoms with N2O could be detected. Results of calculations give a minimum activation energy of 14,000 cal. for the reaction O+N2O = 2 NO and a probable maximum activation energy of 24,000 cal. The activation energy of the reaction O+NO2 = NO+O2 is estimated to be 4000 cal. It is concluded that two primary processes are necessary to explain the direct photochemical decomposition of N2O, N2O+hv = N2+O and N2O+hv = NO+N. The latter reaction must be followed by N+N2O = NO+N2 to explain previously determined quantum yields. The energy of activation of this reaction is probably less than 10,000 cal.Keywords
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