Global thermodynamic behavior of fluid mixtures in the critical region
- 1 January 1993
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review E
- Vol. 47 (1) , 388-402
- https://doi.org/10.1103/physreve.47.388
Abstract
In a previous publication [Z. Y. Chen, A. Abbaci, S. Tang, and J.V. Sengers, Phys. Rev. A 42, 4470 (1990)] a renormalized Landau expansion was constructed for the thermodynamic free energy of one-component fluids that incorporates the crossover from singular thermodynamic behavior at the critical point to regular behavior far away from the critical point. In the present paper the approach is extended to obtain a crossover free energy for binary fluid mixtures in the region around the vapor-liquid critical line. The thermodynamic equations thus obtained are compared with experimental equation-of-state and specific-heat data for mixtures of carbon dioxide and ethane.Keywords
This publication has 44 references indexed in Scilit:
- Measurements of the virial coefficients and equation of state of the carbon dioxide+ethane system in the supercritical regionInternational Journal of Thermophysics, 1992
- Critical parameters of mixtures of carbon dioxide and ethaneInternational Journal of Thermophysics, 1992
- A parametric model for the global thermodynamic behavior of fluids in the critical regionThe Journal of Chemical Physics, 1992
- Thermophysical Properties of EthaneJournal of Physical and Chemical Reference Data, 1991
- Asymmetric Scaled Equation of State and Critical Behavior of Binary MixturesJournal of Heat Transfer, 1988
- Leung-Griffiths model for the thermodynamic properties of mixtures of CO2 and C2H6 near the gas-liquid critical lineInternational Journal of Thermophysics, 1983
- Pressure, volume, temperature relations of ethaneThe Journal of Chemical Thermodynamics, 1973
- Critical Points in Multicomponent SystemsPhysical Review A, 1970
- The isotherms of CO 2 in the neighbourhood of the critical point and round the coexistence lineProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1937
- Isotherms of CO 2 between 70 and 3000 atmospheres (Amagat densities between 200 and 600)Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1935