Gas turbine operates with air. At the initial state the air has pressure of 1.3 MPa and temperature 773K, after the expansion, the air has pressure of 100 kPa and is at temperature 120C. The cross-sectional area of a turbine changes from 0.2 m2 to 1m2 respectively. Knowing that the initial velocity of air is 40 m/s, determine: a. mass flow rate. Use tables as needed.      b. power generated by the turbine. Use tables as needed.

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