An adiabatic heat exchanger is to cool ethylene glycol (cp = 2.56 kJ/kgC) flowing at a rate of 2 kg/s from 80 to 40C by water (cp = 4.18 kJ/kgC) that enters at 20C and leaves at 55C. Determine (a) the rate of heat transfer and (b) the rate of entropy generation in the heat exchanger.

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