Oil with a specific heat of 2 kJ/kg K is cooled from 110 C to 70 C by a fl ow of water in a counterflow heat exchanger. Water flows at the rate of 2 kg/s and is heated from 35 C to 65 C. The overall...

Oil with a specific heat of 2 kJ/kg K is cooled from 110C to 70C by a fl ow of water in a counterflow heat exchanger. Water flows at the rate of 2 kg/s and is heated from 35C to 65C. The overall heat transfer coefficient is estimated to be 0.37 kW/m²
K. Determine the exit temperatures of oil and water, if the water flow rate drops to 1.5 kg/s at the same oil flow rate. Take cp of water as 4.18 kJ/kg K.