The data below give the dew and bubble temperature of methanol/ ethanol mixtures at 1 bar.

a) A solution containing 30% methanol (by mol) is flashed to 1 bar, 70.82 °C. Determine the phase of the system; if two phases, report the compositions and relative amounts of each phase. 

b) What is the maximum mol fraction of methanol that can be achieved when a solution with 30% methanol is flashed to 1 bar? The maximum mol fraction of ethanol? 

c) Make a Txy plot for this system and annotate it properly.

Transcribed Image Text:

mol fraction MeOH Tdew (C) Tbubble (C) mol fraction MeOH Tdew (C) Tbubble (C) 0 0.1 0.2 0.3 0.4 0.5 78.00 76.95 75.85 74.70 73.49 72.20 78.00 76.32 74.72 73.19 71.73 70.33 0.6 0.7 0.8 0.9 1 70.82 69.35 67.76 66.05 64.20 68.99 67.71 66.49 65.31 64.20