question archive As depicted in the schematic below, air flows steadily through a turbine that produces rotational, mechanical work at a rate of 520 kW

As depicted in the schematic below, air flows steadily through a turbine that produces rotational, mechanical work at a rate of 520 kW

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As depicted in the schematic below, air flows steadily through a turbine that produces rotational, mechanical work at a rate of 520 kW. Inlet and exit conditions are shown in the schematic, where pressures indicated at the inlet (1) and exit (2) are absolute pressures. The specific heat of air at constant pressure, cp, is 1.01 kJ/kg-K, and the specific gas constant for air, R, is 287 J/kg-K. 

a) Calculate the exit velocity 

b) Calculate the rate of heat transfer from the turbine Q

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