Mass-Spectrometric Studies of Atomic Reactions. V. The Reaction of Nitrogen Atoms with NO2

The reaction of N atoms with NO2 has been studied in a fast flow system, using a mass spectrometer to monitor the composition of the reaction mixture. The rate constant for removal of NO2 by N was found to be (1.85±0.22)×10−11 cm3 molecule−1·sec−1. By a combined mass-spectrometric and photometric method the relative contributions of the different primary reactions have been determined as follows (errors shown are standard deviations): N+NO2→N2O+O (0.43±0.04),N+NO2→2NO (0.33±0.07),N+NO2→N2+O2 (0.10±0.12),N+NO2→N2+2O (0.13±0.11).