Kinetics of the reaction OH + SO2 in He, N2, and O2 at low pressure

Yin Yu Lee, Wen Chuen Kao, Yuan-Pern Lee

研究成果: Article同行評審

30 引文 斯高帕斯(Scopus)

摘要

The rate constants of the gas-phase reaction of OH with SO2 for M = He, N2, and SO2 have been determined by using the discharge flow/resonance fluorescence technique. The termolecular rate constants (all in units of cm6 molecule-2 s-1) and the corresponding experimental conditions are as follows: k(M=He) = (1.1 ± 0.3) × 10-32 exp[(640 ± 200)/T] (280-413 K, 1-6 Torr); k(M=SO2) = (3.3 ± 1.5) × 10-31 exp[(1055 ± 500)/T] (280-363 K, P < 0.23 Torr); k(M=N2) = (2.4 ± 0.7) × 10-31 (298 K, 0.6-4.5 Torr); the uncertainties represent 95% confidence limits. The rate constants are in reasonable agreement with Leu's results. The rate constant for M = O2 was also estimated to be (1.0-1.8) × 10-31 cm6 molecule-2 s-1 at 298 K, smaller than previous measurements.

原文English
頁(從 - 到)4535-4540
頁數6
期刊Journal of physical chemistry
94
發行號11
DOIs
出版狀態Published - 1990

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