Review Conceptual Example 9 before attempting this problem. A window air conditioner has an average coefficient of performance of 2.0. In a futile attempt to cool a bedroom, this unit has been placed on the floor by the bed. During this attempt, 7.6 × 104 J of heat is removed from the air in the front of the unit. Determine the net heat added to the room by operating the air conditioner in this manner.