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Effective collision diameters and correlation of some thermodynamic properties of solutions
Author(s) -
Prausnitz J. M.,
Benson P. R.
Publication year - 1959
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690050310
Subject(s) - thermodynamics , chemistry , distillation , solubility , binary number , vapor pressure , dispersion (optics) , absorption (acoustics) , collision , phase (matter) , chromatography , materials science , organic chemistry , physics , arithmetic , mathematics , composite material , computer security , computer science , optics
Volumetric data on gas mixtures and vapor‐phase data for gas‐liquid equilibria have been correlated within the framework of the theory of corresponding states. An expression based on the London potential for dispersion forces was used to compute characteristic temperatures for various binary systems, and a correlation was developed relating these temperatures to the polarizabilities, ionization potentials, and critical volumes of the pure components. The correlation shows how the molecular shape of a liquid affects its vapor‐phase solubility. With the help of this correlation it is possible to make very good predictions of such gas‐liquid equilibria as are required in high‐pressure distillation, absorption, and petroleum hydrofining operations.