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Geofísica internacional
versión On-line ISSN 2954-436Xversión impresa ISSN 0016-7169
Resumen
ROBLES-DOMINGUEZ, J. A. M.; ROBLES-GUTIERREZ, J. A y LOMNITZ, C.. An equation of state for more than two phases, with an application to the Earth's mantle. Geofís. Intl [online]. 2007, vol.46, n.3, pp.155-161. ISSN 2954-436X.
A general equation of state for fluids of any number of phases is derived. The equation contains the principal experimental state equations as special cases. The non-additive energies of 3, 4, ... particles must also be considered, plus the additive binary energies. In order to derive the isotherm in the vicinity of a critical point, it is found that the equation of state must contain at least three parameters, including the non-additive three-body potential energy. We show how to obtain the interaction spectra of an equation of state for the earth's mantle.
Palabras llave : Equation of state; phases; non-additive energies; additive binary energies; isotherms.