$4-1.$ Heat$-$Transfer Coefficient in Single$-$Effect Evaporator. A feed of $4535$kg $/$ h of a $2\mathrm{.}0$ wt $\%$ salt solution at $311$K enters continuously a single$-$effect evaporator and is being concentrated to $3\mathrm{.}0\%.$ The evaporation is at atmospheric pressure and the area of the evaporator is $69\mathrm{.}7$m$^2.$ Sat$$rated steam at $383\mathrm{.}2$K is supplied for heating. Since the solution is dilute, it can be assumed to have the same boiling point as water. The heat capacity of the feed can be taken as c$\_$p$=4\mathrm{.}10$kJ $/$ kg$$K$.$ Calculate the amounts of vapor and liquid product and the overall heat$-$transfer coefficient U