The Potential Energy of a Molecule at the Surface of a Liquid

question 9

Multiple Choice

The potential energy of a molecule at the surface of a liquid is

• A) higher than that of a molecule in the bulk.
• B) lower than that of a molecule in the bulk.
• C) exactly the same as that of a molecule in the bulk.
• D) higher or lower depending on the liquid.
• E) higher or lower depending on the pressure.

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