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The lowering of the three-phase equilibrium temperature in a binary system upon addition of a third component

✍ Scribed by A. P. Pieroen; A. E. Korvezee

Publisher: Elsevier Science
Year: 2010
Tongue: English
Weight: 254 KB
Volume: 81
Category: Article
ISSN: 0165-0513
DOI: 10.1002/recl.19620811010

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✦ Synopsis

Abstract

In a binary system A‐B, wherein a solid compound AB~n~ occurs beside a liquid phase consisting mainly of B and a gaseous phase consisting mainly of A, the three‐phase equilibrium temperature and pressure are interdependent. At a given pressure the addition of a third component C causes a lowering of the equilibrium temperature, already discussed in a previous article on gas hydrates^1^ and for which the general equation (VI) is now derived. Under specified conditions this equation may be simplified. The calculation of the standard heat of formation ΔH° to be used in this general equation is given in another previous paper ^2^. When the compound is formed from two immiscible liquid layers, instead of from a gaseous phase and a liquid one, similar considerations are valid.

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