The diagram shows equilibrium data for a binary mixture. The coordinates of the given points are xD = [0.95,0.95]; A = [0.30,0.50]; B = [0.0, 0.80]; C = [0.10, 1.0]

If the x-coordinate of point D = 0.82. what is the value of the y-coordinate?
ii. What is the value of  when the mixture consists almost entirely of the more volatile component?
iii. What is the value of  when the mixture consists almost entirely of the less volatile component?
If the line from A to xD is the top operating line of a column,
iv. What is the distillate composition?
v. What, approximately, is the liquid composition leaving the top tray?
Chemical &
Biological
Engineering.
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vi. What do you estimate to be the vapors composition reaching the top tray?
vii. What is the reflux ratio in this column?

Temperature, C T-xy diagram for ETHANOL/TOLUENE 112.5 1.0133 bar y 1.0133 bar 110.0 107.5 105.0 102.5 100.0 97.5 95.0 92.5 90.0 37.5 85.0 82.5 80.0 77.5H 75.0 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.55 0.60 0.65 0.70 0.75 0.30 0.85 0.90 0.95 1.00 Liquid/vapor mole fraction, ETHANOL