In this problem we begin with heat Q and realize that it
Chapter 15, Problem 15.44(choose chapter or problem)
In this problem we begin with heat Q and realize that it is used for two purposes: First, it makes the solid change into a gas, which entails a change U in the internal energy of the material, U Ugas Usolid. Second, it allows the expanding material to do work W on the environment. According to the conservation-of-energy principle, how is Q related to U and W?
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