The Journal of Chemical Physics · 1966 · 29 citations · 17 references
Natural SciencesChemical EngineeringChemistryChemical KineticsPhysical ChemistryReaction EngineeringAtmospheric Oxidation ProcessesChemical Reaction KineticsGas-phase Reaction KineticsOzone ChemistryReactive Oxygen SpeciesStoichiometryEquilibriumNitrous OxideOxidation KineticsOzone Decomposition KineticsOzone Reaction KineticsShock Tube KineticsThermal DecompositionThermal Decomposition Reactions
A shock tube has been employed to study the reaction between atomic oxygen and nitrous oxide in an excess of molecular oxygen. The temperature was varied from 1700° to 2300°K. The total gas concentrations ranged from 0.085 to 1.42×10−5 moles/cc. The atomic oxygen was generated by the thermal decomposition of ozone. The rate constant for the reaction between atomic oxygen and nitrous oxide is shown to be k2′+k2″ = (2.3±0.4)×1013 exp(−25 000±800/RT) cc/mole sec. It is shown that the best fit to the experimental data is obtained when the extrapolation of the low-temperature rate constant for the reactionO+NO+M⇌NO2+M,is employed rather than the rate constant obtained through the reverse reaction and the equilibrium constant. The former rate constant is a factor of 6 greater than the latter rate constant.
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