| A New Perturbed Hard-Sphere Equation of State |
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| 作者单位： | Center for Molecular Sciences,Institute of Chemistry,Chinese Academy of Sciences,Beijing 100080 |
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| 基金项目： | the National Natural Science Foundation of China and Chinese Academy of Sciences for financial support (29725308, 29633020). |
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| 摘 要： | In 1873 van der Waals1 proposed a two-parameter cubic equation of state (EOS), which provides a rather clear physical picture of molecular interactions in real fluids. Because of its simplicity, it soon was widely used. Other famous equations of state, such as PR2, Soave3, have been proposed since then. But all these equations are not accurate enough when applied to liquid phase.The trend of modeling the properties of fluids is that a single equation of state can be applied to both vapor an…
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A New Perturbed Hard-Sphere Equation of State |
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| Shou Gang WANG,Hong Wei XIANG,Bu Xing HAN. A New Perturbed Hard-Sphere Equation of State[J]. Chinese Chemical Letters, 2000, 11(11) |
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| Authors: | Shou Gang WANG Hong Wei XIANG Bu Xing HAN |
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| Abstract: | A new equation of state based on hard-sphere perturbed theory was developed. This equation combined the CS repulsive term and Guo-Du attractive term. Parameters of 38 substances were estimated, the pressure-volume-temperature properties were calculated and compared with two other equations. The results show that this equation is more accurate. |
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| Keywords: | Equation of state hard-sphere perturbed theory thermodynamic properties |
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