Need help with part C. Thanks!

2. Vapor-liquid equilibrium data for mixtures of water and isopropanol at 1 atm are given below. a. Prepare Txy and xy diagrams. b. A solution containing 40mol% isopropanol is slowly vaporized until 75mol% is vaporized. What are the compositions of the equilibrium vapor and liquid? 1 c. Compare your answer in (b) to those obtained from T-x-y and x-y diagrams based on Raoult's law (see vapor pressure data). What do you conclude? Hint: Use the Antoine equation, ln(PS)=k1+k3+Tk2, to fit the data given and determine vapor pressure for applying Raoult's Law. Notes: Composition of the azeotrope: x=y=68.54%. Boiling point of azeotrope: 80.22C. Boiling point of pure isopropanol: 82.5C