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Analysis of the unimolecular reaction N2O5 + M ⇌ NO2 + NO3 + M

✍ Scribed by M. W. Malko; J. Troe

Publisher
John Wiley and Sons
Year
1982
Tongue
English
Weight
781 KB
Volume
14
Category
Article
ISSN
0538-8066

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✦ Synopsis

Recent experimental results on the thermal decomposition of N205 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 k o = "21 2.2 X lo-:' (T/300)-4.4 exp(-11,080/T) cm3/molec.s over the range of 220-300 K, k , = 9.7 X l O I 4 (T/300)+O exp(-l1,080/T) s-l over the range of 220-3oO K, and broadening factors of the fall-off curve F,,,, = exp(-T/250) + exp(-1050/T) over the range of 220-520 K have been derived. NO? + NO3 recombination rate constants over the range of 200-300 K are krec,o = "21 3.7 X (T/300)-4-' cmfi/molec2.s and k , , , , = 1.6 X (T/300)+0-2 cmg/molec.s.

📜 SIMILAR VOLUMES

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The reactions Br + NO2 + M -+ BrNOZ + M (1) and I + NOz have been studied at low pressure (0.6-2.2 torr) at room temperature and with helium as the third body by the discharge-flow technique with EPR and mass spectrometric analysis of t h e species. The following third order rate constants were fou