XY Diagram for alpha Ides VLE 04 0.2 00.2040.60.8 0/6/99 Equilibrium Staged separations0/6/99 Equilibrium Staged Separations 12 XY Diagram for Alpha = 4 0.0 0.2 0.4 0.6 0.8 1.0 0 0.2 0.4 0.6 0.8 1 X Y Ideal VLE