1. The feed to a distillation column is a binary mix of liquid and vapor q = , and at 100 kmol/h and xF = 0.5 A side stream of saturated liquid is withdrawn at 15 kmol/h with xS = 0.7. If xD = 0.95 and xB = 0.125, calculate D and B. If L/V = 0.7, calculate L/V and . Sketch what the operating line will look like under an assumed equilibrium curve. There is no need to calculate the number of stages.