6533b85efe1ef96bd12bfb2a

RESEARCH PRODUCT

Continuum-uniform approach calculations of the solubility of hydrocarbons in water

Juan-luis Pascual-ahuirIñaki TuñónEstanislao Silla

subject

chemistry.chemical_classificationAlkaneAqueous solutionGeneral Physics and AstronomyThermodynamicsMineralogySolventHydrophobic effectSurface tensionHydrocarbonchemistryCavitationPhysical and Theoretical ChemistrySolubility

description

Abstract The ransfer free energies from gas phase to water for some hydrocarbons are calculated by means of a continuum-uniform model of the solvent. For the calculation of the cavitation energy a model based on the surface tension is proposed. The calculated values are compared with the experimental free energies obtained with and without a corrective factor that accounts for the difference in the solute—solvent sizes. Good agreement between the theoretical free energies and the corrected experimental data is obtained. Our calculations seem to show that the hydrophobic effect is directly related to the molecular surface area.

https://doi.org/10.1016/0009-2614(93)85403-b