A liquid feed stream with an enthalpy of $-2500$ BTY$/$Ib$-$mole and $45\%$ mole methanol and $55\%$ mole water must undergo open steam rectification at $1$ atm. There must be $1\mathrm{.}35$ times the minimum amount of saturated steam available for the procedure. The saturated liquid distillate product must contain $96\%$ mole methanol in $100$ Ib$-$mole$/$hr$,$ while the saturated liquid bottoms must contain $4\%$ mole methanol. A complete condenser is offered. Determine using the Ponchon$-$Savarit techniquea. Steam outputb. Feed ratec. Optimal plate count and feed plate placementd. Required reflux ration