Experimental VLE Data for Binaiy Systems

The VLE data for binary systems are obtained experimentally by mixing two components and allowing the vapor—liquid system to equilibrate. Then temperature and pressure are measured. Samples of the vapor phase and liquid phase are taken and analyzed.

Liquid compositions are usually expressed as mol fraction of light component and the symbol x is used. Vapor composition is expressed as mol fraction light component, using the symbol y. Mixture composition is then changed and the procedure repeated.

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