Using the technique of flash photolysis-resonance fluorescence, absolute rate constants have been measured for the reaction H + 0 2 + M 4 HOz + M over a temperature range of 220-360°K. Over this temperature range, the data could be fit to an Arrhenius expression of the following form: The units for
A flash photolysis resonance fluorescence investigation of the reaction OH + H2O2 → HO2 + H2O
✍ Scribed by Michael J. Kurylo; Jennifer L. Murphy; Geoffrey S. Haller; Kenneth D. Cornett
- Publisher
- John Wiley and Sons
- Year
- 1982
- Tongue
- English
- Weight
- 666 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0538-8066
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✦ Synopsis
Abstract
The flash photolysis resonance fluorescence technique has been used to measure the rate constant for the reaction
equation image
over the temperature range of 250–370 K. The present results are in excellent agreement with three very recent studies, and the combined data set can been used to derive the expression
equation image
similar to that currently used in atmospheric modeling applications.
A summary of our computer simulation of this reaction system is presented. The results of the computations indicate the absence of secondary reaction complications in the present work while revealing significant problems in the earlier (pre‐1980) studies of the title reaction.
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The flash photolysis resonance fluorescencc technique has been used to measure the rrtte constant for the rcaction of O(3P) atoms with CION at 10 torr total pressure over the temperature range 225-273 K. The values obtained can be fit to the Arrhenius equation kr = (1.87 f 1.29) X 10-12 exp[ -(692 i
## Abstract The kinetics of the hydrogen abstraction from H~2~O~2~ by ^•^OH has been modeled with MP2/6‐31G\*//MP2/6‐31G\*, MP2‐SAC//MP2/6‐31G\*, MP2/6‐31+G\*\*//MP2/6‐31+G\*\*, MP2‐SAC// MP2/6‐31+G\*\*, MP4(SDTQ)/6‐311G\*\*//MP2/6‐31G\*, CCSD(T)/6‐31G\*//CCSD(T)/6‐31G\*, CCSD(T)/6‐31G\*\*//CCSD(T)
HO2 profiles in the thermal decomposition of H,02 in shock waves over the range 1000-1250 K were analyzed with respect to the reactions HO+HZOz+HOz+H20 (3) and HO+H0r~Hz0+02 (4). Reaction (3) shows a strong up-turn ofthe rate constant at temperatures near 800 K. Over the range 250-1250 K, k, can be
Rate constants for the reaction of OH radicals with CCS and CS, have been determined at 296 K using the flash photolysis resonance fh~orescen~ technique. The values derived from this study are kOH +mS = (5.66 \* 1.21) X lo-l4 cm3 mokcuk-' s-l a& \_+OH + CS2 = (1 .I35 2 0.34) X lOmu cm3 molecu!e-' s-