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A reasonably general expression for vapour-liquid phase equilibrium at low to moderate pressure is Φi yi P = Yi xi fi° where, Φ is a vapor fugacity component, Yi is the liquid activity co-efficient and fi° is the fugacity of the pure component i. the Ki value (Yi = Ki xi) is therefore, in general a function of | |
A. | temperature only. [Wrong Answer] |
B. | temperature and pressure only. [Wrong Answer] |
C. | temperature, pressure and liquid composition xi only. [Correct Answer] |
D. | temperature, pressure, liquid composition xi and vapour composition yi. [Wrong Answer] |