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Answer: D. maximum potential energy.

Answer: (d) maximum potential energy.

A molecule inside the liquid is attracted equally from all sides. To bring it to the surface, work has to be done against the net inward cohesive pull, and this work is stored as potential energy. So surface molecules have more potential energy than interior molecules; this extra energy is the surface energy.

Doubtly AI · 29 Oct 2026 AI-generated · not yet verified Report
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