Beyond Onsager-Casimir Relations: Shared Dependence of Phenomenological Coefficients on State Variables.Phenomenological coefficients in linear nonequilibrium thermodynamics have been considered to be independent, apart from restrictions due to the Onsager-Casimir reciprocal relations and the requirement to have non-negative entropy production.  These results may also clarify inconsistencies in the literature regarding constitutive models used that do not obey these thermodynamic constraints.
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