Detailed rate coefficients and the enthalpy change of the equilibrium reaction over the temperature range 345-385 K
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Source and publish data:
Journal of Chemical Physics p. 2098 - 2105 (1994)
Update date:2022-08-16
Topics:
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Authors:
Lin, Shih-Chieh
Kuo, Tsu-Chi
Lee, Yuan-Pern
Article abstract of DOI:10.1063/1.467717
The reaction between OH and C6H6 in He has been studied over the pressure range 250-500 Torr and the temperature range 345-385 K by means of the laser-photolysis/laser-induced-fluorescence technique.Analysis of the temporal profile of yielded the detailed rate coefficients and the equilibrium constant for the reaction OH + C6H6 + M <*> HOC6H6 + M.The temperature dependence of the rate coefficients for the forward, the reverse,and the adduct-loss reactions have been determined to be kf = (2.0+/-0.1)x10-14 exp<(1420+/-250)/T> cm3molecule-1 s-1, kr = (3.0+/-0.2)x1012 exp<-(8240+/-320)/T> s-1, and ka = (1.7+/-0.3)x106 exp<-(3500+/-360)/T> s-1, respectively.The temperature dependence of the equilibrium constant led to the enthalpy of reaction ΔH(365+/-20 K) = -(20.0+/-1.2) kcal mol-1 and the entropy of reaction ΔS(365+/-20 K) = -(33.6+/-2.5 cal K-1 mol-1, greater than previously reported values; after correction for temperature dependence, ΔH0(298 K) = -(19.9+/-1.2) kcal mol-1 and ΔS0(298 K) = -(33.4+/-2.6) cal K-1 mol-1.
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Full text of DOI:10.1063/1.467717
Detailed rate coefficients and the enthalpy change of the equilibrium reaction
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This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
31.94.16.10 On: Sun, 21 Dec 2014 11:53:45
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This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
31.94.16.10 On: Sun, 21 Dec 2014 11:53:45
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This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
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This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
31.94.16.10 On: Sun, 21 Dec 2014 11:53:45
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This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
31.94.16.10 On: Sun, 21 Dec 2014 11:53:45
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This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
31.94.16.10 On: Sun, 21 Dec 2014 11:53:45
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This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
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