物理化学学报 >> 1997, Vol. 13 >> Issue (03): 264-269.doi: 10.3866/PKU.WHXB19970315

研究简报 上一篇    下一篇

非缔合二元有机液体混合物过剩热容的测定与计算

孙宏伟,高铭书   

  1. 北京化工大学化工系,北京 100029|天津大学化学工程系,天津 300072
  • 收稿日期:1996-07-08 修回日期:1996-10-10 发布日期:1997-03-15
  • 通讯作者: 孙宏伟

Measurement and Computation of Excess Heat Capacity of Nonassociation Binary Liquid Mixture

Sun Hong-Wei,Gao Ming-Shu   

  1. Beijing University of Chemical Technology,Department of Chemical Engineering,Beijing 100029|Tianjin University,Department of Chemical Engineering,Tianjin 300072
  • Received:1996-07-08 Revised:1996-10-10 Published:1997-03-15
  • Contact: Sun Hong-Wei

关键词: 过剩热容, 非缔合二元液体混合物, 过剩熵, 过剩体积

Abstract:

The excess heat capacities of seven nonassociated systems such as cyclohexane-benzene were determined at 298.15K. latm, using, Calvet microcalorimeter. On the basis of Liebremann model, correlation between excess entropy and excess volume was introduced, the model estimating CEp of nonassoiation binary liquid mixture with pure liquid property and excess volume was established. The excess heat capacities of seven nonassociated systems were calculated by the model, the computation values fit the experiment values on the whole concentration.

Key words: Excess heat capacities, Nonassociatin binary liquid mixture, Excess entropt, Excess volume