At the boiling point, the molecules of a liquid in equilibrium with its vapor phase have, on average, the same ___________ in both phases?

CHEMICAL ENGINEERING MCQs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

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Subject
CHEMICAL ENGINEERINGchemical-engineering
Published
12 Mar 2019
Last updated
28 May 2026

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Explanation

At the boiling point, molecules in the liquid and vapor phases have equal average kinetic energy, which corresponds to the temperature of the system. Potential energy, intermolecular forces, and total energy differ between the two phases.

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