3. A window-mounted room air conditioner removes energy by heat transfer from a room and rejects energy by heat trans fer to the outside air. For steady-state operation, the air conditioner cycle requires a power input of 0.434 kW and has a coefficient of performance of 6.22. Determine the rate that energy is removed from the room air, in kW. If electricity is valued at $0.1/kWh, determine the cost of operation for 24 hours of operation.