Chemical and physical energy accommodation in the metal-surface-catalyzed decomposition of hydrazine vapor

Energy transfer to the catalyst per reaction event has been studied for hydrazine vapor decomposing on Pt, Ir, or W at a temperature greater than 900/sup 0/K. The measurements utilize a newly developed fast-flow chemical reactor which can obtain, in a single experiment, values of the chemical energy accommodation coefficient, thermal accommodation coefficient for unreacted hydrazine, and the reaction probability. Due to the relatively small reaction exoergicity (< 1 eV) and the great difference between the temperatures of the incident