2) A mixture of ethanol (0.5 mole fraction) and water is passed into a flash drum at 1 atm pressure and 79.5 degrees C. The feed flow rate is 1000 mol/hr. Find the vapor and liquid flow rates and compositions. Solve using the enthalpy composition flow diagram. 3) Design a diameter and length for a vertical drum to perform the separation in # 2) above. 2) A mixture of ethanol (0.5 mole fraction) and water is passed into a flash drum at 1 atm pressure and 79.5 degrees C. The feed flow rate is 1000 mol/hr. Find the vapor and liquid flow rates and compositions. Solve using the enthalpy composition flow diagram. 3) Design a diameter and length for a vertical drum to perform the separation in # 2) above