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Reduced state correlations of the enskog modulus for gases and liquids
Author(s) -
Veeramani Hariharan,
Thodos George
Publication year - 1966
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450440308
Subject(s) - polar , hydrogen bond , methane , thermodynamics , equation of state , hydrogen , compressibility , nitrogen , chemistry , argon , carbon dioxide , compressibility factor , materials science , organic chemistry , molecule , physics , astronomy
The Enskog modulus, bρ x , has been subjected to a generalized treatment to develop reduced state correlations for nonpolar and polar substances that exhibit hydrogen bonding. These correlations present relationships between 1 + b ρ x and ρ R , the reduced density. For nonpolar substances, the PVT data of argon, nitrogen, methane, ethane, and carbon dioxide were used for the development of these relationships, which were found to depend on z c , the critical compressibility factor. PVT data for ammonia, methyl alcohol, and water yielded a different correlation, which is applicable to polar substances which exhibit hydrogen bonding. These relationships were found to depend on the parameter, β = (T b ‐ T m )/ M , which quantitatively describes the extent of hydrogen bonding for polar compounds.