[1]张常山,俞柏恒,叶静娴.Clapeyron方程推导的探讨[J].南京理工大学学报(自然科学版),1999,(05):474-476.
 ZhangChangshan YuBoheng YeJingxian.Studies on Deduction of Clapeyron′s Equation[J].Journal of Nanjing University of Science and Technology,1999,(05):474-476.
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Clapeyron方程推导的探讨()
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
期数:
1999年05期
页码:
474-476
栏目:
出版日期:
1999-10-30

文章信息/Info

Title:
Studies on Deduction of Clapeyron′s Equation
作者:
张常山俞柏恒叶静娴
南京理工大学化工学院, 南京210094
Author(s):
ZhangChangshan YuBoheng YeJingxian
School of Chemical Engineering, NUST, Nanjing 210094
关键词:
热力学 相平衡 克拉珀龙方程
Keywords:
thermodynamics phase equilibrium Clapeyron’s equation
分类号:
O642.42
摘要:
以单组分体系液- 气平衡为例对Clapeyron 方程进行了严格的推导。当该体系升温增压时,其液相和气相所发生的变化分别相当于其纯相的先等温加压后等压升温和先等压升温后等温加压的复合变化。于是,利用单组分均相体系的热力学公式就可以方便而准确地得出平衡共存的液、气两相的吉布斯自由能变,从而避免了常规推导方法中存在的自变量使用不当的问题
Abstract:
Clapey ron’s equat ion is deduced strict ly by considering the gas-liquid phase in a system of one component. When heated, the g as and liquid w ill move to a new state w ith a higher temperature and a g reater pressure. Such a change is equivalent to that of being heated at constant pressure and afterw ards being compressed at constant temperature as a pure phase for the gas and to that of being compressed at constant temperature and afterw ards being heated at constant pressure as a sing le phase for the liquid. In this w ay, the variat ions of Gibbs f ree energy of tw o phases in equilibrium can be obtained conveniently and correctly f rom the basic thermodynamic formulas used for the systems of one component and only one phase, and the problem of using incorrect independent v ariables during the normal deduct ion of Clapeyron’s equat ion is avoided.

参考文献/References:

1 郭余年, 赵凤云. 对公认的Clapeyron 方程的推导的不同意见. 化学通报, 1995( 11) : 50~ 51
2 傅献彩, 沈文霞, 姚天扬. 物理化学: 上册. 第4 版. 北京: 高等教育出版社, 1993. 144~ 145
3 胡英, 吕瑞东, 刘国杰, 陆曜南. 物理化学: 上册. 第3 版. 北京: 高等教育出版社, 1993. 158~ 159

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备注/Memo

备注/Memo:
张常山 男 32 岁 讲师
更新日期/Last Update: 2013-03-29