High temperature study of the reaction of O(3P)+NH3

Values of the rate constant for the reaction O(3P)+NH3 were determined by compring calculated O atom profiles with those obtained experimentally in the temperature range 2069‐2459K. Oxygen atoms were generated by thermal decomposition of N2O. The results were combined with those from previous direct studies (448‐1790K) to given the following expression 448‐2459K:     k2(T)=2.27×10−18 T2.19 exp(−3061/T) cm3 molecule−1 s−1 An overall uncertainty of ±25% is estimated for this expression.