Cooling water leaves at 35C and at 100 kg/s from the condenser of a thermal power station and enters a cooling tower. In this tower, the water is cooled to 22C with air entering at 1 atm, 20C and 60% relative humidity, leaving saturated at 30C. Determine: a) The volumetric flow rate of air entering the tower. a) The mass flow rate of the make-up water.