This simulation shows how the fugacities of benzene (B) and toluene (T) change with temperature and molar composition at constant pressure. The liquid mixture is an ideal solution and the gas phase is ideal, so Raoult’s law models vapor-liquid equilibrium. Use the sliders to vary the temperature and overall mole fraction of benzene. Use the buttons to view the temperature-composition diagram (T-x-y), the fugacity-temperature plot, or both plots at once.

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About:

This simulation was made at the University of Colorado Boulder, Department of Chemical and Biological Engineering.  Author(s): Garrison J. Vigil, Rachael L. Baumann

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