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The heat of formation of the ethyl radical
Author(s) -
Cao JR.,
Back M. H.
Publication year - 1984
Publication title -
international journal of chemical kinetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.341
H-Index - 68
eISSN - 1097-4601
pISSN - 0538-8066
DOI - 10.1002/kin.550160803
Subject(s) - chemistry , thermochemistry , standard enthalpy of formation , reaction rate constant , kinetics , thermodynamics , standard enthalpy change of formation , radical , computational chemistry , organic chemistry , physics , quantum mechanics
An examination of the results of measurements of the forward and reverse rate constants for the reaction\documentclass{article}\pagestyle{empty}\begin{document}$$ {\rm H} + {\rm C}_{\rm 2} {\rm H}_{\rm 6} \mathbin{\lower.3ex\hbox{$\buildrel\textstyle\rightarrow\over {\smash{\leftarrow}\vphantom{_{\vbox to.5ex{\vss}}}}$}} {\rm H}_{\rm 2} + {\rm C}_{\rm 2} {\rm H}_{\rm 5} $$\end{document}shows that agreement between the kinetics and the thermochemistry is achieved only through use of a value of ΔH f (C 2 H 5 ) = 28 kcal mol −1 . This system therefore provides further support for the recent measurement of this quantity.