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Applications of Surface Tension

Surface tension of soap solution is less, it can spread over large areas and wash clothes more effectively, since the dirt particles stick to the soap molecules.

In soldering, addition of flux reduces the surface tension of molten tin. Hence, it spreads.

Antiseptics like dettol have low surface tension, so that they spread faster.

Surface tension prevents water from passing through the pores of an umbrella.

A duck is able to float on water as its feathers secrete oil that lowers the surface tension of water.

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