Flash Distillation Simultaneous Solution Graphical Approach.

$1000$mol$\frac{e}{h}$ of $0\mathrm{.}4$ mole fraction ethanol$-$water solution enters a flash drum operated at $101\mathrm{.}3$kPa. Determine the flowrate, composition of the products leaving the flash drum, and the $T_{\text{d}\text{r}\text{u}\text{m}}$ for the following cases:

$($a$)T_F$ is $53C$

$($b$)T_F$ is $160C$

$($c$)$ enthalpy of the fesd entering the drum, $h_F$ is $250$kca$\frac{l}{k}g$ You can use the heat capacity data given in problem $2$D$9.$