need part B answered

Problem 2. The feed to a flash drum is 15.0 mole % n-butane, 35.0 mole % n-pentane, 30.0 mole % n-hexane, and the remainder is n-heptane. The feed flow rate is 100 kg moles/day. Use the McWilliams equation instead of the DePriester charts. a. The drum temperature is 75 C, and the drum pressure is 175 kPa (absolute pressure). Find VIF, Xi, and yi. b. What is the maximum pressure (in kPa absolute pressure) you could have at 75 C and still have vapor/liquid equilibrium? Report the pressure to 3 significant figures Problem 2. The feed to a flash drum is 15.0 mole % n-butane, 35.0 mole % n-pentane, 30.0 mole % n-hexane, and the remainder is n-heptane. The feed flow rate is 100 kg moles/day. Use the McWilliams equation instead of the DePriester charts. a. The drum temperature is 75 C, and the drum pressure is 175 kPa (absolute pressure). Find VIF, Xi, and yi. b. What is the maximum pressure (in kPa absolute pressure) you could have at 75 C and still have vapor/liquid equilibrium? Report the pressure to 3 significant figures