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0.3kg/s of saturated liquid containing 44% w/w water and 56%w/w acetic acid is to be fractionated to give distillate containing 90% w/w water and bottoms containing 20%w/w water. The reflux ratio is 5 and the reflux is returned as saturated liquid. The enthalpies of saturated liquid and vapour, h and H in Joules/gm are given by : h=250+170xH=670+2010y where x and y are weight fractions of water in liquid and vapour respectively. Equilibrium data in wt % water is: Calculate: \begin{tabular}{|l|l|l|l|l|l|l|l|} \hline Liquid & 9 & 20 & 30 & 44 & 58 & 72 & 86 \\ \hline Vapour & 14 & 30 & 42 & 56 & 68 & 79 & 90 \\ \hline \end{tabular} a- Number of theoretical stages in rectifying and stripping sections. b- Product flow rates c- Flow of water in overhead condenser assuming a temperature rise of 20K for water d- Flow of saturated steam at 3 bar pressure required for the reboiler