Chemical Potential Dependence on Temperature and Pressure
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Changes in the chemical potential of water as a function of pressure (at constant temperature ) or temperature (at constant pressure ) determine vapor-liquid, vapor-solid and liquid-solid phase changes. Chemical potential is given by .
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Contributed by: Majed N. Aldossary (January 2017)
Additional contributions by: Rachael L. Baumann and John L. Falconer
(University of Colorado Boulder, Department of Chemical and Biological Engineering)
Open content licensed under CC BY-NC-SA
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The chemical potential is equal to the Gibbs free energy for a single component. The differential of the Gibbs free energy is:
,
where is volume, is pressure, is entropy and is temperature. For a single component system, .
Reference
[1] P. Atkins and J. de Paula, Atkins' Physical Chemistry, 8th ed., New York: Oxford University Press, 2006.
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