Acta Phys. -Chim. Sin. ›› 1997, Vol. 13 ›› Issue (03): 264-269.doi: 10.3866/PKU.WHXB19970315

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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

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