$5.$ Water stored in a large, well$-$insulated storage tank at $21\mathrm{.}0\backslash$deg C and atmospheric pressure is being pumped at steady state from this tank by a pump at the rate of $40$ m$\%$h$.$ The motor driving the pump supplies energy at the rate of $8\mathrm{.}5$ kW$.$ The water is used as a cooling medium and passes through a heat exchanger where $255$ kW of heat is added to the water. The heated water then flows to a second, large vented tank, which is $25$ m above the first tank. Determine the final temperature of the water delivered to the second tank.