mol% n-hexane/60 mol% n-heptane at 10
atm pressure and 25°C is sent through an
expansion valve, where the pressure
drops to 1 atm, and into a flash tank,
which is heated. Vapor and liquid are
separated in the tank and leave at 1 atm
and 85°C. Calculate the compositions
and flow rates of the vapor and liquid
streams leaving the tank. Calculate the
amount of heat (kJ/s) added to the tank.