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Chemical Engineering · Q249

Chemical Engineering Thermodynamics

Engineering and GATE · Chemical Engineering · question 249

Q249

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
B.
Temperature and pressure only
C.
Temperature, pressure and liquid composition xi only
Answer
D.
Temperature, pressure, liquid composition xi and vapour composition yi

Answer: Option C

Solution

Answer: Option C
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