K An oil stream (cp=2 kcal/kg. C) is cooled at a rate of 200 kg/h from 200C to 100C in a shell and tube heat exchanger (one shell, ten tube passes). The cold water (cp = 1 kcal/kg.C) enters the tubes at 20C with a rate of 150 kg/h. What would happen to the overall heat transfer coefficient (U) and output temperature of the oil stream (Toil,out) if the water feed rate is raised to 500 kg/h?