Calculation of thermodynamic properties from a modified Redlich-Kwong equation of state
β Scribed by H. Hederer; S. Peter; H. Wenzel
- Publisher
- Elsevier Science
- Year
- 1976
- Weight
- 581 KB
- Volume
- 11
- Category
- Article
- ISSN
- 0300-9467
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π SIMILAR VOLUMES
A modified Redlich-Kwong equation of state is proposed. Vapor pressures of pure compounds can be closely reproduced by assuming the parameter a in the original equation to be temperature-dependent. With the introduction of the acentric factor as a third parameter, a generalized correlation for the m
new temperature dependence of the attractive part of the Redhch-Kwong equation 1s presented It has been deslgned to describe accurately vapour pressure of pure components, also at low reduced temperatures, usmg a mmlmum of expernnental data
Convenient and accurate methods of calculating the thermodynamic properties of gases from experimental compressibility-factor data through the use of the Redlich and Kwong equation of state are presented. Analytical and graphical methods are combined. As an example, fugacity and activity coefficient