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Generalized van der Waals theory of liquid-liquid phase transitions

Yu. D. Fomin·V. N. Ryzhov·E. E. Tareyeva
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Abstract

In the framework of the thermodynamic perturbation theory for fluids we study how the phase diagram of an isotropic repulsive soft-core attractive potential, where a liquid-liquid phase transition exists in addition to the standard gas-liquid phase transition, changes by varying the parameters of the potential. We show that existence of the liquid-liquid transition is determined by the interplay of the parameters of the potential and the structure of a reference liquid.

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Yu. D. Fomin, V. N. Ryzhov, E. E. Tareyeva. 2005-12-24. Generalized van der Waals theory of liquid-liquid phase transitions. https://doi.org/10.1103/physreve.74.041201

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