What energy is called the internal energy of the body?

The internal energy of the body is the sum of the kinetic energies of all the molecules of this body and the potential energy of their interactions. It depends on body temperature, the state of aggregation of the substance and other factors.
The energy of motion and interaction of the particles that make up the body is called the internal energy of the body. The internal energy of the body is composed of the potential and kinetic energies of all its molecules.

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