Question

In which of the following intermolecular interaction energy proportional to 1/r³

? (r is the distance between two particles)​

Answer 1

Answer:

Dipole-dipole interaction energy between stationary polar molecules (as in solids) is proportional to 1/r3 and that between rotating polar molecules is proportional to 1/r 6, where r is the distance between polar molecules. Besides dipole- dipole interaction, polar molecules can interact by London forces also.