4. A binary system of species 1 and 2 consists of vapor and liquid phases in equilibrium at temperature T. The overall mole fraction of species 1 in the system is zį = 0.60 at temperature T. In yı = 0.85 x² P sat = 42.3 kPa In y2 = 0.85 x1² P2sat = 79.7 kPa Assuming the validity of the modified Raoult’s Law, For liquid mole fraction xị = 0.47, find the pressure P and the molar fraction V of the system that is vapor

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