Abstract
From a semi-empirical model for the relaxation time of the heat flux and from a generalised Maxwell relation, we obtain the equations of state of an extended Gibbs equation which describes the dependence of a non-equilibrium entropy on the internal energy and the heat flux. By integration of the Gibbs equation, we obtain an explicit expression for the corresponding non-equilibrium entropy. © 1981 The Institute of Physics.
Original language | English |
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Pages (from-to) | 1225-1231 |
Journal | Journal of Physics A: Mathematical and General |
Volume | 14 |
DOIs | |
Publication status | Published - 1 May 1981 |