76. A heat exchanger was installed purposely to cool 0.50 kg of gas per second. Molecular

weight is 32 and k = 1.32. The gas is cooled from 150°C to 80°C. Water is available at the rate of

0.30 kg/s and at a temperature of 15°C. Calculate the exit temperature of the water in °C.

A. 44.86 B. 42.86 C. 46.45 D. 40.34