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Reaction rates of atomic oxygen with straight chain alkanes and fluoromethanes at high temperatures

✍ Scribed by Akira Miyoshi; Kenji Ohmori; Kentaro Tsuchiya; Hiroyuki Matsui

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 553 KB
Volume: 204
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(93)90003-j

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✦ Synopsis

Rates of reaction of atomic oxygen ('P) with straight chain alkanes (C&5) and fluoromethanes (CHP and CHF,) have been measured at temperatures above 850 K by a laser flash photolysis-shock-tube technique coupled with atomic resonance absorption spectrometry. Measured rate constants agreed well with a recent TST calculation for O+CHa and O+CzH,. However, a small deviation from the TST calculation was found for 0+ C,HI and larger alkanes. Preferable modified Anhenius expressions for these reactions are presented. A good Evans-Polanyi correlation was found for the reactions investigated in the present study.

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