Decomposition Rate of Nitric Oxide between 3000 and 4300°K

Abstract

Time‐resolved absorption spectra of shock‐heated nitric oxide in the far ultraviolet have been taken using photoelectric detection. The decomposition rate of nitric oxide between 3000 and 4300°K was thereby measured. The initial rate was found to be the sum of the direct dissociation reaction, NO+Ar→N+O+Ar, with k=7×10¹² exp(—150 000/RT) liters/mole sec, and the bimolecular reaction, 2 NO→N₂+O₂, with k=4.8×10²⁰T^—5/2 exp(—85 500/RT) liters/mole sec.