Question

Can internal energy of a system be 0?

Answer 1

Dear student

No, internal energy of a system cannot be zero. This is because, there is always an inherent energy possessed by the molecules.
However., for an isolated system, as there is no exchange of heat or work with the surroundings. The change in internal energy is zero.
Thus the change in internal energy can be zero, but internal energy itself cannot be zero.

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