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15. Define surface tension. Give the SI unit and dimensional formula of surface tension.016 What is effluy velocity2 Water flows out of a small hole in the wall of a large tank naar te hatta |
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Answer» Surface tension is the force per unit length (or surface energy per unit area) acting in the plane of the interface between the plane of the liquid and any other substance. It is also the extra energy possessed by the molecules at the interface compared to that possessed by the molecules in the interior.This tends to minimise the area of the surface. The SI unit of surface tension is N/m or J/m2. Its dimensional formula is MT−2. |
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