1. The P-x-y phase diagram here is for acetone(1) +cyclohexane(2) at 308.15 K. (a) Draw a tie line to determine the pressure and the two species' activity coefficients for the equilibrium liquid at x₁ = 0.2. (b) This binary mixture containing 60 mol% acetone is sent at a rate of 10 mol/s into a VLE unit controlled at 308.15 K and 50 kPa, what are the production rates of the vapor and liquid phases? 60 P (kPa) 50 40 30 20 20 10 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 X1, V1 1

Fig: 1