Total vapour pressure and excess Gibbs energy of ethanol with 1,8-cineole at temperatures between 278.15K and 323.15K

2011 ◽  
Vol 309 (1) ◽  
pp. 83-88 ◽  
Author(s):  
Beatriz Gimeno ◽  
Marcos Torcal ◽  
Ana M. Mainar ◽  
José S. Urieta ◽  
Pascual Perez
Keyword(s):  
Gibbs Energy ◽  
Vapour Pressure ◽  
Excess Gibbs Energy

On Temperature Dependence of Excess Gibbs Energy

1999 ◽  
Vol 64 (7) ◽  
pp. 1093-1099 ◽  
Author(s):  
Ivona Malijevská ◽  
Anatol Malijevský
Keyword(s):  
Heat Capacity ◽  
Gibbs Energy ◽  
Temperature Dependence ◽  
Excess Gibbs Energy ◽  
Excess Enthalpy ◽  
Excess Heat Capacity ◽  
Wilson Equation ◽  
Excess Heat ◽  
Energy Excess ◽  
Wilson And Nrtl Equations

Temperature dependence of GE is discussed for three widely used equations linear and nonlinear in parameters. It is shown that the Wilson equation predicts always positive excess heat capacity regardless of values of its parameters. Several temperature modifications of the Redlich-Kister, Wilson and NRTL equations are discussed with respect to the sign of the excess Gibbs energy, excess enthalpy and excess heat capacity.

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