A counter-flow heat exchanger that comprise of 200 tubes with 20 mm outer diameter and 5 m length each. The hot fluid moves inside the tube and cold over it where such that opposite direction of the hot fluid. If the overall heat transfer coefficient based on outer diameter is 320 W/m2 C. Determine the outlet temperature of both fluids and total heat transfer using the data given below: Thi = 120C, To = 20C, mn= 20 kg/s, mc = 5 kg/s Cph = 2000 J/kg.C, Cpc = 4000 J/kg.C. E = [1-e-NTU(-C) [1-C,(e)-NTU(-6)) for counter flow