A reevaluation of the branching ratio for the reaction of amidogen with

3713

J . Phys. Chem. 1987, 91, 3713-3714

COMMENTS A Reevaluation of the Branching Ratio for the Reaction of NH, with NO Sir: Identification of the products of the reaction of N H z with N O is of major concern in understanding the formation and control of nitrogen oxides in a variety of combustion and atmospheric p r o c e ~ s e s . ' ~The importance of this reaction lies in the degree to which radical products are formed as compared with the production of stable products

N H+ ~ NO

2N ~ H+ OH

TABLE I: Measured Values of the Branching Ratio for the Reaction NH, + NO investigators (ref) CY temp, K 0.4 f 0.1 ' 294 Silver and Kolb ( 5 ) Andresen et al. (6) 20.65 298