In the temperature range of $0$ to $100\backslash$deg C$,$ the following basic reaction is initially carried out in an aqueous solution containing only pure A using MFR$.$

Under the conditions of the initial concentration of A$,$ CA$0=1$ mol$/$liter$,$ FA$0=1000$ mol$/$min$,$ we want to convert A by $80\%.$ Use the given graph to answer the following questions. $($Use Figure E$9\mathrm{.}3)$