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Rate constants of the reaction HO+H2O2→HO2+H2O at T⩾1000 K

✍ Scribed by H. Hippler; J. Troe

Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
449 KB
Volume
192
Category
Article
ISSN
0009-2614

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✦ Synopsis

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 represented as kS= [1.0x 10'2+5.8~ 10'4exp( -4810 K/T)] cm3 mol-' s-'. The "anomalous" temperature dependence suggests a mechanism involving an HjO, intermediate complex.

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