(b) A cooling coil, consisting of a single length of tubing through which water is circulated, is provided in a liquid tank. The contents of the liquid tank are kept uniformly at 360 K by means of a stirrer. The inlet and outlet temperatures of the cooling water are 275 K and 315 K respectively. What would the outlet water temperature become if the length of the cooling coil were increased 4 times? Assume the overall heat transfer coefficient to be constant over the length of the tube and independent of water temperature.