9.1 A flash drum is used to separate an equimolar mixture of toluene, p-xylene, and ethylbenzene fed at 5 atm and 470 K. The flash is operated at 1 atm and 400 K. Calculate the heat which must be supplied to the drum per mole of feed to the unit";ssuming Raoult's law is applicable. A stream consisting of 60% n-octane and 40% n-hexadecane (mole basis) 9.2 9.1 A flash drum is used to separate an equimolar mixture of toluene, p-xylene, and ethylbenzene fed at 5 atm and 470 K. The flash is operated at 1 atm and 400 K. Calculate the heat which must be supplied to the drum per mole of feed to the unit";ssuming Raoult's law is applicable. A stream consisting of 60% n-octane and 40% n-hexadecane (mole basis) 9.2