The Van Der Waals equation of state has been modified in order to improve its accuracy. The introduction of a temperature dependence of the attraction term allows reproducing accurately purecompound vapour pressures. The modification of the mixing rules, with the infinite-pressure excess-freeenergy
Reduced van der Waals equation of state and critical properties of rubbers
β Scribed by Th. Vilgis; H.-G. Kilian
- Publisher
- Elsevier Science
- Year
- 1983
- Tongue
- English
- Weight
- 276 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0032-3861
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A cubic equation of the van der Waals type 1s presented wtth the cntlcal compress~lxhty factor taken as substance dependent Input requrrements are Pltzer's acentnc factor and the crItIca temperature and pressure Parameter b IS treated as Independent of temperature, and the temperature dependence of
A six-parameter equation of state is derived from fundamental relationships of thermodynamics. The proposed equation is applied to the prediction of PVT data over the entire experimental range for several gases which are representative of many molecular types including polar, non-polar and strongly