Water stored in a large well insulated storage tank at $21C$ and atmospheric pressure is being pumped at steady state from this tank by a pump at the rate of $40\frac{m^3}{h}.$ The motor driving the pump supplies energy at the rate of $8\mathrm{.}5kW.$ The water is used as a cooling medium and passes through a heat exchanger where $255kW$ of heat is added to water. The heated water then flows to a second, large vented tank, which is $25m$ above the first tank. Determine the final temperature of the water delivered to the second tank.