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In relation to this article, we declare that there is no conflict of interest.
Publication history
Received September 25, 2008
Accepted December 15, 2008
articles This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Modified Guggenheim-Huggins-Miller combinatorial factor and its application to lattice fluid equation of state

School of Chemical & Biological Engineering, Seoul National University, San 56-1, Shilim-dong, Gwanak-gu, Seoul 151-744, Korea
Korean Journal of Chemical Engineering, January 2009, 26(1), 235-239(5), 10.1007/s11814-009-0039-4
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Abstract

The Guggenheim-Huggins-Miller (GHM) combinatorial factor is modified by introducing a factor in the pair probability of a hole-hole pair. The proposed contribution is combined with the expanded quasi-chemical contribution and tested against saturated vapor pressure and liquid density. The proposed model correlates experimental saturated liquid density better than a quasi-chemical nonrandom lattice fluid (QLF) model based on original GHM combinatorial factor. The optimized parameters show a quite different behavior compared with that of the QLF model and the relationships between the parameters of two models are discussed.

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