1. The problem statement, all variables and given/known data If a room is at 27C and the surroundings at 42C, and the heat into the room is 2,000 Cal s-1. What is the minimum work the air conditioner must do to keep the room at 27C? 2. Relevant equations COP = Tc/(Th-Tc) Win = Qout/(1+COP) 3. The attempt at a solution COP = (300.15/(315.15-300.15) COP = 20.01 Win = 2,000 Cal s-1/(1+20.11) W=95.15 Cal s-1 or 398.1 J s-1 Look okay?