1. Water stored in a large, well-insulated tank at 21C and atmospheric pressure is being pumped at steady state to a second tank at a height of 25m above the initial tank. The pump energy input is 8.5kW. The water passes through a heat exchanger and gains heat at a rate of 255kW. What is the final temperature of the water in the second tank? The volumetric flow rate is 40 m3/h. List all assumptions and use the textbook's steam tables for your calculations. 2. Water (you may assume density =1000kg/m3, and viscosity =1.0103kg/ms is to be pumped from the bottom of a well that is 630m below the surface to an open storage tank on the surface in a 20cm interior diameter smooth steel pipe at a linear velocity of 1.61m/s. The mass flow is 50.51kg/s. The friction loss in the pipe and fittings is 286.5J/kg. Atmospheric pressure at the surface is 9.2105Pa. The pressure at the bottom of the well is 5.2105Pa. What is the pump work if the pump efficiency is 73%