Failure of the Identity Linking Thermal Expansion and Isothermal Compressibility in Condensed Phases | Chapter 09 | Advances and Trends in Physical Science Research Vol. 1
In
thermodynamics, there is a relation that connects the thermal expansion coefficient
and the isothermal compressibility. It has been supposed that it was a
universal identity. However, it is shown here that this identity is not
appropriate for condensed phases. Experimental measurements confirm this
conclusion. This relation is used in the derivation of Mayer's relation and the
heat capacity ratio and proceeds to produce results that significantly deviate
from experimental results for condensed phases. An additional mistake is also
detected in the derivation of Mayer's relation.
Biography of author(s)
Igor Stepanov
Institute
of Science and Innovative Technologies, Liepaja University, Liela 14, Liepaja,
Latvia, LV-3401, Latvia.
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