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1. a) Think about liquid water boiling at 100°C (i.e. liquid water in equilibrium with gas...

1.

a) Think about liquid water boiling at 100°C (i.e. liquid water in equilibrium with gas water). How does the internal energy (U) of the water molecules compare in the liquid and gas phases (i.e. are they the same, is one greater than the other)? What about the potential energy? What about the kinetic energy?

b) A container has a gas at 25°C and 1 bar. You increase the pressure to 1.5 bar while keeping the volume constant.What are the signs of q, w, and ∆U?

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