2400 Use the Txy and Pxy diagrams for methanol/2-butanol mixtures at 95C and 715 mmHg for parts c) and d). P., Diagram @T-95C 1. Diagram @P-715 mmHg c) A mixture of 20.0 mole% 2-butanol and the balance methanol is at 95C. What is the liquid mole fraction of methanol at the dew point? 2200 2000 30 1800 1600 Pressure (mmHg Temperature (C) 80 1400 1200 75 1000 2 800 65 c) 500 0.2 0.8 0.0 0.2 0.8 10 0.4 0.6 Methanol Mole Fraction 04 0.6 Methanol Mole Fraction d) A liquid mixture of 2-butanol and ethanol are at 95.0C and 715 mmHg has 90.4 mole% butanol and the balance ethanol. Determine the vapor pressure of ethanol at 95.0C (mmHg)