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A reasonably general expression for vapour-liquid phase equilibrium at low to moderate pressure is Φᵢ yáµ¢ P = Yáµ¢ xáµ¢ fáµ¢° where, Φ is a vapor fugacity component, Yáµ¢ is the liquid activity co-efficient and fáµ¢° is the fugacity of the pure component i. The Káµ¢ value (Yáµ¢ = Káµ¢ xáµ¢) is therefore, in general a function of
Options:
A .  temperature only.
B .  temperature and pressure only.
C .  temperature, pressure and liquid composition xáµ¢ only.
D .  temperature, pressure, liquid composition xáµ¢ and vapour composition yáµ¢.
Answer: Option C
Answer: (c).temperature, pressure and liquid composition xáµ¢ only.

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