Two steady flow of air enters a control volume, shown in Fig. P6.37. One is 0.025 kg/s flow at 350 kPa, 150C, state 1, and the other enters at 350 kPa, 15C, both flows with low velocity. A single flow of air exits at 100 kPa, 40C through a 25-mm diameter pipe, state 3. The control volume rejects 1.2 kW heat to the surroundings and produces 4.5 kW of power. Determine the flow rate of air at the inlet at state 2.