• • To complete this assignment follow the instructions Handwritten on A4 unruled sheets and later uploaded in pdf format Any answers must not be copied from any source Plag of any kind is not acceptable once detected by us • Provide detailed explanation for positive ratings and feedback Question 1 I. (25 pts) We wish to separate a mixture of 30 mol% n-butane and 70% n-hexane in a flash drum operating with Y = = = 0.4 and temperature 100 °C. The feed rate is 10 kmol/h. Determine Pdrum, Xi, and yi. (Note: the vapor pressures of n-butane and n-hexane at 100 °C are 11121.2 mmHg and 1844.4 mmHg, respectively).