Excess Gibbs energy for six binary solid solutions of molecularly simple substances

In this paper we apply the method developed in a previous study of Ar + CH 4 to the evaluation of the excess Gibbs energy G E S for solid solutions of two molecularly simple components The method depends on combining information on the excess Gibbs energy G E L for the liquid mixture of the two comp...

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Bibliographic Details
Published in:The Journal of physics and chemistry of solids 1985, Vol.46 (2), p.181-186
Main Authors: Lobo, L.Q., Staveley, L.A.K.
Format: Article
Language:English
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Summary:In this paper we apply the method developed in a previous study of Ar + CH 4 to the evaluation of the excess Gibbs energy G E S for solid solutions of two molecularly simple components The method depends on combining information on the excess Gibbs energy G E L for the liquid mixture of the two components with a knowledge of the ( T, x) solid-liquid phase diagram Certain thermal properties of the pure substances are also needed G E S has been calculated for binary mixtures of Ar + Kr, Kr + CH 4, CO + N 2, Kr + Xe, Ar + N 2 and Ar + CO. In general, but not always, the solid mixtures are more non-ideal than the liquid mixtures of the same composition at the same temperature Except for the Kr + CH 4 system, the ratio r = G E S G E L is larger the richer the solution in the component with the smaller molecules
ISSN:0022-3697
1879-2553
DOI:10.1016/0022-3697(85)90032-0