Hot exhaust gases of an internal combustion engine are to be used to produce saturated water vapor at 2 MPa pressure. The exhaust gases enter the heat exchanger at 400oC at a rate of 32 kg/min while water enters at 15oC. The heat exchanger is not well insulated, and it is estimated that 10% of heat given by the exhaust gases is lost to the surroundings. The mass flow rate of the exhaust gases is 15 times that of the water and constant specific heat properties of the exhaust gases can be approximated using the properties of air at 600K. Determine the temperature of the exhaust gases leaving the heat exchanger and the rate of heat transfer to the water.