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| The {{src|models/thermodynamics.a4l}} ASCEND code provides methods for calculating vapor-liquid equilibria (VLE).
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| Details on various group-contribution methods can be found here:
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| UNIQUAC:
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| [https://en.wikipedia.org/wiki/UNIQUAC UNIQUAC model] on Wikipedia
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| UNIFAC:
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| [https://en.wikipedia.org/wiki/UNIFAC UNIFAC model] on Wikipedia
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| modified UNIFAC:
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| [http://pubs.acs.org/doi/abs/10.1021/ie00071a018 A modified UNIFAC group-contribution model for prediction of phase equilibria and heats of mixing]
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| The predictive Soave-Redlich-Kwong (PSRK) equation of state combines the Soave-Redlich-Kwong cubic equation of state with the Mathias-Copeman equation and the modified UNIFAC group-contribution method:
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| [https://en.wikipedia.org/wiki/PSRK PSRK model] on Wikipedia
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| See also [[predictive Soave-Redlich-Kwong (PSRK)]]
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| The UNIFAC consortium manages the parameter database for the original UNIFAC, modified UNIFAC and PSRK model:
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| [http://www.ddbst.com/unifac-consortium.html The UNIFAC Consortium]
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| See also [[Thermodynamics with ASCEND]].
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| [[Category:Documentation]]
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| [[Category:Examples]]
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