Liquid water enters a cooling tower operating at steady state at 40°c with a mass flow rate of 105 kg/h. cooled water at 25°c exits the cooling tower at the same mass flow rate. makeup water is supplied at 23°c. atmospheric air enters the tower at 30°c, 1 bar, 35% relative humidity. a saturated moist air stream exits at 34°c, 1 bar. determine a. the mass flow rates of the dry air and makeup water, each in kg/h. b. the rate of exergy destruction within the cooling tower, in kw, for t0 = 23°c.