Himanshi posted an Question
September 02, 2021 • 16:35 pm 30 points
  • IIT JAM
  • Physics (PH)

How potential energy of molecule is decided by intermolecular forces in kinetic theory of gases?

how potential energy of molecule is decided by intermolecular forces in kinetic theory of gases?

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  • Isha lohan 1 best-answer

    Intermolecular potentials include Coulomb, hard-sphere, Lennard-Jones, and a variety of other spherical pair potentials. In addition there exist orientation-dependent potentials, three- and many-body potentials, and external potentials. Two molecules at small separation distances experience short-range interactions that are repulsive and related to valence overlap. At large separation distances the two molecules experience long-range interactions that are attractive and related to dispersion energies or London forces. Dispersion energies can be thought of as short-lived, time-dependent, distortions or fluctuations in the electron cloud of a molecular species that lead to a temporary dipole moment that results in attraction.

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