The excess enthalpies of (carbon dioxide + n-hexane + toluene) at 573.15 K and 7.50 and 12.50 MPa

The excess molar enthalpies HmE{x1CO2 + x2C6H14+ (1 − x1 − x2)C6H5CH3} were measured at 573.15 K and 7.50 and 12.50 MPa with an isothermal flow calorimeter. All mixings were endothermic with maximum HmE values of 7120 J · mol−1 and 7.50 MPa and 4300 J · mol−1 at 12.50 MPa. The relation between the t...

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Bibliographic Details
Published in:The Journal of chemical thermodynamics 1989-01, Vol.21 (1), p.41-51
Main Authors: Pando, C., Renuncio, J.A.R., Faux, P.W., Christensen, J.J., Izatt, R.M.
Format: Article
Language:English
Subjects:
Chemical thermodynamics
Chemistry
Elements, mineral and organic compounds
Exact sciences and technology
General and physical chemistry
General. Theory
Metals and alloys
Mixtures
Thermodynamic properties
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Summary:The excess molar enthalpies HmE{x1CO2 + x2C6H14+ (1 − x1 − x2)C6H5CH3} were measured at 573.15 K and 7.50 and 12.50 MPa with an isothermal flow calorimeter. All mixings were endothermic with maximum HmE values of 7120 J · mol−1 and 7.50 MPa and 4300 J · mol−1 at 12.50 MPa. The relation between the ternary HmEs and the HmEs for the three related binary mixtures is discussed. Toop's equation was found to provide accurate predictions of ternary HmEs. Correlations methods are also discussed. Results are compared with those previously obtained for the same mixture at lower temperatures.
ISSN:0021-9614
1096-3626
DOI:10.1016/0021-9614(89)90006-2