0.46. What is the rate of he 5.6. A counterflow heat exchanger having a UA value of 2 kW/K receives stream I at a temperature of 60°C and stream 2 at a temperature of 20°C. The flow rates are 0.3 and 0.4 kg/s, and the cp in kJ/(kg K) are 3.2 and 4.19 for streams 1 and 2, respectively. What is the outlet temperature of stream 2? unterflow heat exchanger at a temperature of 60°C having -