A hot fluid at 200°C enters a heat exchanger at a mass flow rate of 104kg/hr. Its specific heat is 2000J/kg k. It is to be cooled by another fluid entering at 25°C with a mass flow rate 2500 kg/hr and...

A hot fluid at 200°C enters a heat exchanger at a mass flow rate of 104kg/hr. Its specific heat is 2000J/kg k. It is to be cooled by another fluid entering at 25°C with a mass flow rate 2500 kg/hr and specific heat 400 J/kg k. The overall heat transfer coefficient based on outside area of 20 m2is 250 W/m2K. Find the exit temperature of the hot fluid when the fluids are in parallel-flow.