Question 6: For the distillation in figure 3 below, calculate Nmin and the distribution of the nonkey components by the Fenske equation, knowing top and bottom temperatures are 20 C and 125 C respectively. Hint see examples 9.3 in separation book and equations 9-15 and 9-16. HK 1C5 15 kmol/h 700 kPa C3 ICA nC4 1C5 nC5 nC6 nC7 nCg kmol/h 2,500 400 600 100 200 40 50 40 LK 7C4 6 kmol/h gure 3 multicomponent distillation column for mixture in question 6