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Water is the working fluid in an ideal regenerative Rankine cycle with one open feedwater heater. Steam enters the turbine at 1400 Ibf/in.2 and 1000F and expands to 120 lbf/in.2, where some of the steam is extracted and diverted to the open feedwater heater operating at 120 lbf/in.? The remaining steam expands through the second-stage turbine to the condenser pressure of 6 lbf/in? Saturated liquid exits the open feedwater heater at 120 lbf/in.? The net power output of the cycle is 1x 10'Btu/h. Determine for the cycle: (a) the mass flow rate of steam entering the first stage of the turbine, in lb/h. (b) the rate of heat transfer, in Btu/h, to the working fluid passing through the steam generator. (c) the percent thermal efficiency