In a distillation column operating continuously under atmospheric pressure, the aqueous ethanol solution is distilled and a head product containing 80% ethanol by weight and a base product containing 95% water are obtained. A whole condenser is connected to the column and the enthalpy of the liquid phase coming out of the condenser is 105 kJ/kg. The distillation process is provided by sending the saturated water vapor at 270.2 kPa absolute pressure bare from the bottom shelf of the column. The flow rate of the feed stream fed into the system as a liquid at the boiling point is 1000 kg/h. Since the amount of ethanol in the mixture consisting of the mixing of saturated water vapor fed from the bottom of the column with the feed stream is known as 25% by weight and the enthalpy value is known as 1045 kJ/kg,

a) Find the flow of saturated water vapor required in the system. b) Calculate the rifax ratio. c) Calculate the heat (qc, kJ/kg) taken from the condenser. d) Find the required theoretical number of racks and the location of the feeding rack.

\begin{tabular}{|c|c|c|} \hline \multirow{2}{*}{ Etanol (Arlk Fraksiyonu) } & \multicolumn{2}{|c|}{ Entalpi (kJ/kg) } \\ \cline { 2 - 3 } & Sv (h) & Buhar (H) \\ \hline 0 & 420 & 2675 \\ \hline 0,1 & 370 & 2520 \\ \hline 0,3 & 315 & 2190 \\ \hline 0,5 & 285 & 1870 \\ \hline 0,7 & 260 & 1540 \\ \hline 0,9 & 225 & 1220 \\ \hline 1,0 & 210 & 1060 \\ \hline \end{tabular}