In a parallel-flow heat exchanger, fluid A at 5 kg/s enters the heat exchanger at 40 C while fluid B at 5 kg/s enters at 80 C. (Assume: the heat capacity of fluid A = 500 J/kg.K, the heat capacity of fluid B = 1000 J/kg.K, the overall heat transfer coefficient based on of fluid B side surface area = 100 W/m.K). Determine: - - = 1. The heat transfer rate of the heat exchanger if = 0.06 (15 points) = 2. The outlet temperature of fluid B (15 points)