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Superheated steam at 2.0MPa and 250C feeds an adiabatic turbine and valve assembly shown below. The turbine produces work at the rate of 1.0MW and

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Superheated steam at 2.0MPa and 250C feeds an adiabatic turbine and valve assembly shown below. The turbine produces work at the rate of 1.0MW and exhausts to 100kPa. Calculate the mass flow rate through the valve needed to achieve the specified output conditions. Show your reasoning, and justify your assumptions

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