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Benedict‐webb‐rubin parameters for ethanol
Author(s) -
GomezNieto Mateo,
Thodos George
Publication year - 1976
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.5450540510
Subject(s) - boiling point , thermodynamics , equation of state , vapor pressure , critical point (mathematics) , nonlinear system , absolute deviation , boiling , alcohol , ethanol , chemistry , mathematics , materials science , statistics , physics , organic chemistry , mathematical analysis , quantum mechanics
Experimental PVT measurements available in the literature for ethanol have been utilized to establish the BWR parameters for this substance using a nonlinear regression analysis involving 300 experimental points for reduced densities up to ρ R = 1.80. The resulting parameters reproduce pressures for these 300 points, with an average deviation of 2.60% and predict the vapor pressure behavior between the normal boiling point and the critical point with an average deviation of 0.91%. This treatment is applied for the first time to the PVT behavior of an alcohol and indicates that the BWR equation of state could well be extended in application to include other oxygenated organic compounds receiving considerable interest in the currently changing energy emphasis.