Which molecule has more potential energy: a m | vedclass

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(A) molecule inside a liquid is surrounded by other molecules on all sides,resulting in a net attractive force of zero.However,a molecule on the surfa

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Molecule on the surface

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(A) molecule inside a liquid is surrounded by other molecules on all sides,resulting in a net attractive force of zero.However,a molecule on the surface is attracted only by the molecules below it,as there are no liquid molecules above it to balance the force.To bring a molecule from the interior to the surface,work must be done against these inward attractive forces.This work is stored in the molecule as potential energy.Therefore,a molecule on the surface possesses more potential energy than a molecule below the surface.

Which molecule has more potential energy: a molecule on the surface or a molecule below the surface?

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