Problem $2.$ For a given flash separation of methanol $(1)$ and ethanol $(2)($different conditions than in Problem $1),$ it is determined that V$/$F $=0\mathrm{.}62,x_1=0\mathrm{.}523,y_1=0\mathrm{.}648,T=75C,$ and $P_{\text{d}\text{r}\text{u}\text{m}}=121\mathrm{.}0$kPa. For these conditions and a feed flow rate of $800$kgmole$\frac{s}{h}r,$ find the dimensions of a flash drum in feet for the case where $\frac{h_{\text{t}\text{o}\text{t}\text{a}\text{l}}}{D}=4\mathrm{.}5.$ To calculate vapor densities, assume the vapor is an ideal gas. The molecular weights for methanol $(1)$ and ethanol $(2)$ are $32\mathrm{.}042$ and $46\mathrm{.}069,$ respectively. The estimated liquid density for the liquid product at $75C$ is $738\mathrm{.}3k\frac{g}{m^3}.$