You decide to use your body as a Carnot heat engine. The operating gas is in a tube with one end in your mouth (where the temperature is 37.0 ∘C) and the other end at the surface of your skin, at 30.0 ∘C. Suppose you want to use this human engine to lift a 2.00 kg box from the floor to a tabletop 1.10 m above the floor. How much must you increase the gravitational potential energy?