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Explain surface tension in the context of potential energy. |
Answer» Solution :The LIQUID stays together because of ATTRACTION between molecules.  Schematic picture of molecules in a liquid , at the surface and balance of forces. (a) Molecule inside a liquid . Forces on a molecule due to others are shown . Direction of arrows indicates attraction of repulsion .(b) Same , for a molecule at a surface. (C ) Balance of ATTRACTIVE (A) and REPULSIVE (R ) forces. |
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