Estimate the flowrate of medium pressure steam (T = 180°C, P_a = 1000 kPa) required to remove an air leak of 300 kg/h into an overhead condenser system operating at 27.5 kPa pressure and 50°C using a single-stage steam ejector. You should assume that the steam and air stream will be partially condensed in a heat exchanger operated at an inlet pressure of 110 kPa (P_OUT).