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KMID : 1059520080520060601
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Journal of the Korean Chemical Society
2008 Volume.52 No. 6 p.601 ~ p.607
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Excess Gibbs Energy for Ternary Lattice Solutions of Nonrandom Mixing
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Jung Hae-Young
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Abstract
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It is assumed for three components lattice solution that the number of ways of arranging particles randomly on the lattice follows a normal distribution of a linear combination of N12, N23, N13 which are the number of the nearest neighbor interactions between different molecules. It is shown by random number simulations that this assumption is reasonable. From this distribution, an approximate equation for the excess Gibbs energy of three components lattice solution is derived. Using this equation, several liquid-vapor equilibria are calculated and compared with the results from other equations.
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KEYWORD
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Nonrandom Mixing, Ternary Solution, Excess Gibbs Energy, Lattice
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