A2.4-m-high 200-m2 house is maintained at 22°c by an air-conditioning system whose cop is 3.2. it is estimated that the kitchen, bath, and other ventilating fans of the house discharge a houseful of conditioned air once every hour. if the average outdoor temperature is 32°c, the density of air is 1.20 kg/m3, and the unit cost of electricity is $0.1/kwh, the amount of money “vented out” by the fans in 10 hours is consider the specific heat to be 1.005 kj/kg·°c.