Assignment Acetic acid $($boiling point $118\backslash$deg C$)$ can be produced from n$-$butane by oxidation. C$4$H$4$o $+2\mathrm{.}502-2$CH C$00$H $+$ H$20$ The reaction is a highly exothermic $($AH $=-990$kJ$/$mol$)$ and temperature controlled is desired in the reactor, However the reaction occurs at $160\backslash$deg C$.$ The by products of this process can be classified as follows: Compounds with boiling point lower than water: ethyl acetates $(77\mathrm{.}1\backslash$deg C$),$ methyl ethyl ketone $(80\backslash$deg C$)$ Compounds with boiling point higher than water: formic acid $(100\mathrm{.}8\backslash$deg C$)$ and propionic acid$(141\backslash$deg C$)$ Non$-$condensable gases Use the above information for the following activities a$)$ Propose a block flow diagram for this process. The proposed flow diagram must produce pure concentration of all acids b$)$ Suggest with justification separation technologies which suit all your separation stages c$)$ Which of the separation is likely to be the most challenging and why?