Statistical thermodynamics of liquid mixtures: A new expression for the excess Gibbs energy of partly or completely miscible systems

@article{Abrams1975StatisticalTO,
  title={Statistical thermodynamics of liquid mixtures: A new expression for the excess Gibbs energy of partly or completely miscible systems},
  author={Denis S. Abrams and John M. Prausnitz},
  journal={Aiche Journal},
  year={1975},
  volume={21},
  pages={116-128}
}
To obtain a semi-theoretical equation for the excess Gibbs energy of a liquid mixture, Guggenheim's quasi-chemical analysis is generalized through introduction of the local area fraction as the primary concentration variable. The resulting universal quasi-chemical (UNIQUAC) equation uses only two adjustable parameters per binary. Extension to multicomponent systems requires no ternary (or higher) parameters. The UNIQUAC equation gives good representation of both vapor-liquid and liquid… 

Calculation of liquid-liquid equilibrium of aqueous two-phase systems using a chemical-theory-based excess Gibbs energy model

Abstract - Mixtures containing compounds that undergo hydrogen bonding show large deviations from ideal behavior. These deviations can be accounted for through chemical theory, according to which the

Excess molar enthalpies of binary and ternary systems involving hydrocarbons and ethers

In modern separation design, an important part of many phase-equilibrium calculations is the mathematical representation of pure-component and mixture enthalpies. Mixture enthalpy data are important

Ethylene Glycol and Its Mixtures with Water and Electrolytes: Thermodynamic and Transport Properties

A comprehensive thermodynamic model has been developed for calculating thermodynamic and transport properties of mixtures containing monoethylene glycol (MEG), water, and inorganic salts and gases.
...

References

SHOWING 1-10 OF 32 REFERENCES

LOCAL COMPOSITIONS IN THERMODYNAMIC EXCESS FUNCTIONS FOR LIQUID MIXTURES

A critical discussion is given of the use of local compositions for representation of excess Gibbs energies of liquid mixtures. A new equation is derived, based on Scott's two-liquid model and on an

Estimation of ternary vapor‐liquid equilibrium

Isothermal vapor-liquid equilibrium measurements were made at 50°C. for the ternary systems acetone-methanol-chloroform, acetone-methanol-carbon tetrachloride, and acetone-methanol-methyl acetate, by

L'équation NRTL pour le calcul des équilibres liquide‐liquide à n‐constituants

We propose a new method for the application of the NRTL equation(1) to the representation of phase equilibria, especially between two liquid phases, of multicomponent mixtures including polar

The entropy of high polymer solutions. Generalization of formulae

The theory of Huggins is extended so as to include application to molecules containing rings and crosslinks. At the same time the definition of Guggenheim's parameter q is slightly revised in such a

Cooperative Orientation Effects in Solutions

A general theoretical method for evaluating the effect on thermodynamic properties of cooperative orientation in solutions is developed. The theory is applied to the systems methanol+benzene,