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  Home > JCE Print > Journal of Chemical Education > Issues > 1996  > August  >
General Interest
On the Entropy Change of Surroundings of Finite and of Infinite Size: From Clausius to Gibbs
H. Frohlich
LCAM (URA 281), bat. 351, Universite Paris-XI, F-91405 Orsay CEDEX, France
Cover
August 1996
Vol. 73 No. 8
p. 716
Abstract
The entropy variation of finite surroundings induced by a chemical reaction is expressed in terms of the reaction enthalpy and the temperature change of the reacting system and of the variables of the surroundings. Expanding the surroundings to infinite size, the expression can be shown to reduce to the Gibbs equation, corresponding to the completely system-oriented entropy analysis. The reversibly calculated heat exchange of a thermal reservoir just equals the opposite irreversible reaction heat of the system.
More Information
*  Citation
 Frohlich, H. J. Chem. Educ. 1996 73 716.
*  Keywords
*  History
 Created:
Last Updated:		 9/23/1999
5/22/2006
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