Simultaneous correlation of the excess enthalpy and W-shaped excess heat capacity of 1, 4-dioxane- n-alkane systems by PRSV-HVOS CEOS

In this work the Peng-Robinson-Stryjek-Vera (PRSV) equation of state coupled with the Huron-Vidal-Orbey-Sandler (HVOS) rule was tested for the correlation of the excess enthalpy (HE) and the excess heat capacity (cp E) alone and simultaneously. The HVOS mixing rule incorporates the NRTL equation as...

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Bibliographic Details
Published in:Journal of the Serbian Chemical Society 2003-01, Vol.68 (1), p.35-46
Main Authors: Kijevčanin Mirjana Lj, Đorđević A.B., Grgurić Ivona R., Đorđević Bojan D., Šerbanović Slobodan P.
Format: Article
Language:English
Subjects:
1,4-dioxane
ceos
excess properties
n-alkane
thermodynamics
Online Access:Get full text
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Summary:In this work the Peng-Robinson-Stryjek-Vera (PRSV) equation of state coupled with the Huron-Vidal-Orbey-Sandler (HVOS) rule was tested for the correlation of the excess enthalpy (HE) and the excess heat capacity (cp E) alone and simultaneously. The HVOS mixing rule incorporates the NRTL equation as the GE model. All calculations were performed using the linear and reciprocal forms of the temperature dependent parameters of the models. For all the evaluations the 1,4-dioxane+n-alkane systems were chosen having in mind the unusually W-shaped concentration dependence of cp E for these systems. The correlation of the HE and cp E data alone for all the investigated systems using four coefficients and for the simultaneous correlation of HE+cp E data using six coefficients of the temperature dependent parameters of the PRSV-HVOS models could be considered as being very satisfactory.
ISSN:0352-5139
1820-7421
DOI:10.2298/JSC0301035K