20.865 should be just 0.865 for the equilibrium data

D7.* A distillation column with a total condenser is separating a feed that is 30.0 mol% acetone from ethanol. Distillate x= 0.90 and bottoms xp = 0.13 both mole fractions acetone. Assume CMO is valid. L/V = 0.8. Boilup ratio 7/B= 1.0. a. Find the composition of the liquid leaving the fifth stage below the total condenser. b. The column has a partial reboiler that acts as an equilibrium contact. Find the vapor composition leaving the second stage above the partial reboiler. c. Find optimum feed plate location, total number of stages, and required q value of feed. Equilibrium data for acetone (A) and ethanol at 1 atm (Perry et al., 1963, pp. 13-4) are XA 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.50 0.60 0.70 0.80 0.90 0.262 0.348 0.417 0.478 0.524 0.566 0.605 0.674 0.739 0.80 20.865 0.929