Liquid—vapour equilibrium in binary mixtures with associations of the components—I General consistency criterion

✍ Scribed by R. Francesconi; C. Trevissoi

• Publisher: Elsevier Science
• Year: 1971
• Tongue: English
• Weight: 724 KB
• Volume: 26
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(71)80053-2

✦ Synopsis

A thermodynamic method has been developed to provide a direct semi-integral criterion of the consistency of liquid-vapour equilibrium data under isobaric and isothermal conditions for binary mixtures with associations between the components in the two phases. The method differs from others by the use of the equality between the microscopic and the macroscopic chemical potentials of the species in both phases. This permits the introduction of fugacity and activity coefficients, which are more convenient to use. Furthermore, it does not require any information on the state of the association in the liquid. The semi-integral criterion enables one to examine without any analytical or graphical difficulty the consistency of the data throughout the whole concentration range of the components.