Water flows steadily through a well-insulated heat exchanger inside 1.5 cm.-diameter tubing. At the inlet of one side of the heat exchanger, steam is flowing at a mass flow rate of 0.9 kg/s. The steam's temperature is 100C and is saturated vapor. At the exit, the temperature and quality of the steam are 100C and 0.05, respectively. On the other side of the heat exchanger, cooling water flows at constant pressure of 1 bar, entering at 10C and exiting at 20C. A. Determine the velocity of the steam at the exit, in m/s. B. Determine the mass flowrate of the cooling-water, in kg/s. C. Determine the rate of heat transfer between the streams in the heat exchanger, in kJ/s. D. Determine the entropy produced inside the heat exchanger, in kJ/kg.K.