The following temperature/composition data were obtained for a mixture of two totally miscible liquids A and B at 1.00 atm, where x is the mole fraction in the liquid and y is the mole fraction in the vapor at equilibrium. θ/°C 125, 130, 135, 140, 145, 150 xB 0.91, 0.65, 0.45, 0.30, 0.18, 0.098 yB 0.99, 0.91, 0.77, 0.61, 0.45, 0.25

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