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Toluene vapors at 1.013 bar, 150°C, are cooled under constant pressure to a final temperature of 22°C. (a) Determine the amount of heat that must be removed (5) (b) How much heat must be removed if the final state is a vapor-liquid mixture that contains 60% vapor by mass. (5) Assume that Cp for vapor phase is a function of temperature, and for liquid toluene Cp is constant (= 155.96 J/(mol K)). The boiling temperature of toluene at 1.013 bar is 110.6°C, and standard heat of vaporization for toluene 38060 J/mol.