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nitrogen gas enters an adiabatic steady flow device at 0.20 MPa, 120 C with a velocity...

nitrogen gas enters an adiabatic steady flow device at 0.20 MPa, 120 C with a velocity of 16.57 m/s. At the exit, conditions are 2.40 MPa and 520 C. This device is a compressor or a turbine and kinetic and potential energies may be neglected. the inlet is a circular duct with a diameter of 12.00 cm.
For nitrogen M=28. Find other properties in Table A-20. R = 8.314
1. Find the mass flow rate of the gas (kg/s)
2. Find the power of this device in kW
3. This device is a ___ because ____.

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