Your supervisor needs you to do an emergency design of a steam turbine. you know that steam enters the turbine at 1500 psia and 1000°f. the adiabatic turbine operates at steady state. twenty-five percent (25%) of the steam entering is extracted midway through the expansion process in the turbine at 150 psia and 450°f. the rest of the steam exits as saturated vapor at 1 psia. the turbine develops a power output of 9 x 108 btu/h. assuming negligible kinetic and potential energy effect, determine the mass flow rate of the steam (ibm/h) entering the turbine.