A feed of 4535 kg/h of a 2.0 wt % salt solution at 31 K enters continuously a single-effect evaporator and is being concentrated to 3.0 %. The evaporation is at atmospheric pressure and the area of the evaporator is 69.7 m ² . Saturated steam at 383.2 K is supplied for heating. Since the solution is dilute, t can be assumed to have the same boiling point as water. The heat capacity of the feed can be taken as c _p =4.10 KJkg.k , Calculate the amounts of vapor and liquid product and the overall heat-transfer coefficient U.