The dilute diffusion flame method for measuring the rates of fast gas reactions has been used to study the reaction 2NO+F2=2ONF. The reaction proceeds with the emission of visible light, and photographic methods were used to obtain concentration profiles in space. The results were interpreted in terms of the mechanism[Complex chemical formula]The interpretation of results is somewhat ambiguous. The observed rate may be that for the first step, in which case the rate constant has a pre‐exponential factor of 6×1011 cc/mole‐sec and an activation energy of 1.5±1.0 kcal between room temperature and dry ice temperature. Alternatively the observed rate may be a composite of at least four of the elementary steps given above. With a reasonable assignment of rate constants for the succeeding steps, the first alternative is favored, although the margin of safety is not great.

This content is only available via PDF.
You do not currently have access to this content.