6) Air enters the compressor of a cold-air-standard ideal Brayton cycle at 100 kPa and 300 K, with a mass flow rate of 7 kg/s. The compressor pressure ratio is 10. The turbine inlet temperature is 1400 K. Determine (a) air temperature at the exhaust of the compressor, (b) air temperature at the exhaust of turbine, (c) heat input and heat output from the air, (d) the net power output of the cycle, and (e) the thermal efficiency of the cycle and. 7) Solve problem 6 assuming that the isentropic efficiency of both turbine and compressor is 80% but there is no pressure drop between the compressor exhaust and turbine inlet, and between the turbine exhaust and compressor inlet.