Question:medium

When 'n' identical mercury drops combine to form a single big drop

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A system naturally tends to move towards a state of lower potential energy. For liquids, surface tension creates a surface energy proportional to the surface area. Combining drops reduces the total surface area, thus lowering the total surface energy. This lost energy is released, usually as heat.

Updated On: Mar 30, 2026

Surface area increases and heat is released
Surface area decreases and heat is released
Surface area increases and heat is absorbed
Surface area decreases and heat is absorbed

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The Correct Option is B

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