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Russian Journal of Physical Chemistry A

, Volume 92, Issue 12, pp 2445–2450 | Cite as

Kinetic Features of Gas Ignition upon Heating

  • V. V. AzatyanEmail author
  • V. M. Prokopenko
CHEMICAL KINETICS AND CATALYSIS
  • 13 Downloads

Abstract

Using hydrogen oxidation as a model reaction, it is shown that the ignition of combustible gases upon heating in the region of atmospheric pressure is caused by a chain avalanche reinforced by self-heating of the reaction mixture, which becomes marked as combustion develops. The functional character of the temperature dependence of the rate of the chain reaction outside the region of ignition differs fundamentally from the Arrhenius law.

Keywords:

reaction rate ignition pressure explosion 

Notes

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Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  1. 1.Semenov Institute of Chemical Physics, Russan Academy of SciencesMoscowRussia
  2. 2.Merzhanov Institute of Structural Macrokinetics and Materials Sciences, Russan Academy of SciencesChernogolovkaRussia

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