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Citation: Qu Qing, Liu Guang-Heng. A New Approach for Predicting Excess Enthalpies of Ternary Mixtures[J]. Acta Physico-Chimica Sinica, ;1997, 13(09): 790-796. doi: 10.3866/PKU.WHXB19970905 shu

A New Approach for Predicting Excess Enthalpies of Ternary Mixtures

Qu Qing ,
Liu Guang-Heng

1.
Department of Chemistry,Yunnan Univeristy,Kunming 650091

Received Date: 31 December 1996
Available Online: 15 September 1997

A new approach has been developed for predicting excess enthalpies of multicomponent mixtures. In this approach, the F-function-modified cubic equation of state-FRKS was used, and the binary interaction parameter function, instead of single value of binary interaction parameter, was applied to provide state-dependent L12 values for every point calculated. The results of the excess enthalpies calculated for twelve representative ternaries and their constituent binaries show that this simple method correlates accurately the binary excess enthalpies, and consequently, the improved prediction of ternary excess enthalpies are obtained without introducing any ternary parameter.
- Prediction,
- Excess enthalpy,
- Ternary,
- Equation of state,
- Binary interaction parameter function
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