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Determination of vapor‐liquid equilibrium data from total pressure‐liquid composition measurements
Author(s) -
Ho James C. K.,
Boshko O.,
Lu Benjamin C.Y.
Publication year - 1961
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.5450390507
Subject(s) - vapor–liquid equilibrium , binary number , thermodynamics , vapor pressure , chemistry , electrolyte , composition (language) , equilibrium constant , activity coefficient , analytical chemistry (journal) , chromatography , mathematics , electrode , physics , linguistics , philosophy , arithmetic , aqueous solution
Digital computer methods are developed for evaluating equilibrium data from total pressure‐liquid composition measurements of volatile binary non‐electrolyte mixtures. The Redlich‐Kister equation is employed for representing liquid activity coefficients. The constants B, C and D are evaluated by the method of least squares for non‐linear formulas. Equilibrium vapor compositions are also evaluated by means of a step‐wise integration procedure. A comparison of both methods is presented.