| The Potential Function for Double Square—Well Model and Its Application to Calculation of the Second Virial Coefficient |
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| 引用本文： | TongJingshan GaoGuanghua 等. The Potential Function for Double Square—Well Model and Its Application to Calculation of the Second Virial Coefficient[J]. 热科学学报(英文版), 1993, 2(3): 165-169. DOI: 10.1007/BF02650853 |
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| 作者姓名： | TongJingshan GaoGuanghua 等 |
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| 摘 要： |
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| 关 键 词： | 气体分子热性质 分子聚集 势函数 第二活力系数 |
| 收稿时间： | 1993-08-15 |
The potential function for double square-well model and its application to calculation of the second virial coefficient |
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| Jingshan Tong,Guanghua Gao,Yongqi Chen. The potential function for double square-well model and its application to calculation of the second virial coefficient[J]. Journal of Thermal Science, 1993, 2(3): 165-169. DOI: 10.1007/BF02650853 |
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| Authors: | Jingshan Tong Guanghua Gao Yongqi Chen |
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| Affiliation: | (1) Chemical Engineering Department, Tsinghua University, Beijing, China |
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| Abstract: | In the present paper, the mechanism of molecular aggregation and the character of potential function for square-well model have been investigated with the principle of molecular thermodynamics, leading to the potential function for double square-well (DSW) model. In addition, the equation of second virial coefficient for DSW model is derived from the statistical mechanics method. The above equation obtained has been verified by tests and the test results are excellent. It is concluded that this equation can well represent the behaviour of fluid molecules. |
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| Keywords: | potential function molecular aggregation second virial coefficient |
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