Which body has more internal energy: a piece of ice at 0 ° C or water obtained from this piece of ice at 0 ° C?

If you take a piece of ice and water of the same mass, then the internal energy of the water will be greater, because in order to destroy the crystal lattice at the ice and turn it into water, you need to spend energy. It turns out ice + energy for the destruction of the crystal lattice = water, it is obvious that the internal energy of water is greater.

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