Nitric oxide decomposition has been studied in a shock tube, time-of-fiight mass spectrometer system at 2700 to 4700 K and 1.5 to 3.5 atm using neon as diluent. The overall decomposition rate was found to be second order in NO concentration and in good agreement with previously reported rates. N2, O2 and O-atoms were the only observed reaction products. The concentration-time profiles of the observed species lend support to a mechanism of primary NO decomposition to N2 and O2 with slower decomposition to N2O and O-atoms. A mathematical simulation of the reaction consisting of eight elementary reactions was deduced by fitting experimental data to simulated concentration-time profiles.
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TRUNG et al. (1975) studied this question.