Showing papers on "Gibbs–Helmholtz equation published in 1985"

The Standard Gibbs Energy of Formation of Ni3 ± x S 2

Abstract: Determination de 973 a 1173 K. Calcul de l'enthalpie de fusion de Ni 2,666 S 2 et de Ni 3 S 2

Uniqueness of one-dimensional continuum Gibbs states

Abstract: We investigate one-dimensional continuum grandcanonical Gibbs states corresponding to finite range superstable many-body potentials. Absence of phase transitions in the sense of uniqueness of the tempered Gibbs state is proved for potentials without hard-core by first proving uniqueness of the Gibbs measures for related hard-core potentials and then taking an appropriate limit of those Gibbs measures.

On the description of molten sat mixtures by integral equation theories

Abstract: The hypernetted chain approximation (HNC) and a modification on this are used to calculate the radial distribution functions and some thermodynamic properties of the system Li/KCl at eutectic composition. The pair interactions are assumed to be of the Born-Huggins-Mayer form. Comparison is made with a molecular dynamics simulation and the results are discussed in the light of experimental evidence on the Gibbs free energy of mixing. It is shown that the description of the mixing properties constitutes a severe test on the theories.

Discrete lattice systems and the equivalence of microcanonical, canonical and grand canonical Gibbs states

Abstract: It is proven that a microcanonical Gibbs measure on a classical discrete lattice system is a mixture of canonical Gibbs measures, provided the potential is “approximately periodic,” has finite range and possesses a commensurability property. No periodicity is imposed on the measure. When the potential is not approximately periodic or does not have the commensurability property, the inclusion does not hold.