The tension of the surface film of a liquid caused by the attraction of the particles in the surface layer by the bulk of the liquid, which tends to minimize surface area this phenomenon is called Surface Tension.
When two molecules attracted each other, the charges in each are disturbed and redistributed in a fashion that the average distance between opposite charge in two molecules is a little smaller then that between like charges. Consequently, electrostatic attraction wins over the repulsion and gives rise to intermolecular attractive forces, Because Of the fact that intermolecular forces are effective only overshort distances, they are describe Short Range Force.
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