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  4. The internal energy of an ideal gas is in the form of

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Q. The internal energy of an ideal gas is in the form of

Kinetic Theory

Solution:

As in an ideal gas, the molecular interaction is negligible, so the potential energy of molecules is not considered. Thus, the internal energy is in the form of only the kinetic energy of the molecules.
It is given by $E=N \times \frac{1}{2} m \bar{v}^{2}$