Water enters a 5cm internal diameter thin copper tube of a heat exchanger at 25 degree C with an average velocity of 1m/s. The water is heated by steam condensing outside, and the temperature there is maintained at 125 degree C. If the average heat transfer coefficient is 500Wm(2)K(1), determine the water temperature after traveling 1m in this tube. The heat capacity of water is 4kJkg(1)K(1)