Kinetics of photolysis of nitric acid vapour. Part 2. - Decomposition of nitric acid photosensitized by nitrogen dioxide

T. Bérces, S. Förgeteg

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Abstract

The photolysis of mixtures of nitric acid and nitrogen dioxide has been studied at 2650Å and room temperature. A mechanism has been suggested which is in accordance with the experimental results obtained at both low and high overall pressures. The value of 1.0 (±0.05) was obtained for the primary quantum yield of NO2 photolysis at 2650 Å. The rate constant ratio k1/k2 of the elementary reactions OH+NO2+M→k1HNO3+M (M=Kr) OH+HNO 3k2H2O+NO3 was determined, and estimates for the rate constants of steps NO3+NO2→ NO2+O2+NO, O+HNO3 →OH+NO3 were made.

Original languageEnglish
Pages (from-to)640-647
Number of pages8
JournalTransactions of the Faraday Society
Volume66
DOIs
Publication statusPublished - Jan 1 1970

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ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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