Analysis of the unimolecular reaction N2O5 + M ⇌ NO2 + NO3 + M
Authors:
- 1 April 1982
- journal article
- research article
- Published by Wiley in International Journal of Chemical Kinetics
- Vol. 14 (4) , 399-416
Abstract
Recent experimental results on the thermal decomposition of N2O5 in N2 are evaluated in terms of unimolecular rate theory. A theoretically consistent set of fall‐off curves is constructed which allows to identify experimental errors or misinterpretations. Limiting rate constants k0 = [N2] 2.2 × 10−3 (T/300)−4.4 exp(−11,080/T) cm3/molec·s over the range of 220–300 K, k∞ = 9.7 × 1014 (T/300)+0.1 exp(−11,080/T) s−1 over the range of 220–300 K, and broadening factors of the fall‐off curve Fcent = exp(‐T/250) + exp(−1050/T) over the range of 220–520 K have been derived. NO2 + NO3 recombination rate constants over the range of 200–300 K are krec,0 = [N2] 3.7 × 10−30 (T/300)−4.1 cm6/molec2·s and krec,∞ = 1.6 × 10−12 (T/300)+0.2 cm3/molec·s.Keywords
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