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Multiple Choice

Latent heat of condensation is the amount of heat removal required to change vapour into a liquid without changing the temperature of the liquid.

Latent heat of condensation is the energy that must be removed when vapor changes into a liquid at a constant temperature. During condensation, the gas molecules lose enough energy to form intermolecular bonds and become a liquid, all without any change in temperature. This energy removal is the latent heat of condensation, and its magnitude per unit mass is essentially the same as the latent heat of vaporization, just with the opposite sign since the process releases heat instead of absorbing it. The other ideas describe different processes: vaporization requires adding energy to turn a liquid into vapor, not removing it; heating a liquid above its boiling point is sensible heat that raises temperature rather than causing a phase change; freezing releases latent heat of fusion, which is a different phase change (liquid to solid) and not condensation.

Latent heat of condensation is the energy that must be removed when vapor changes into a liquid at a constant temperature. During condensation, the gas molecules lose enough energy to form intermolecular bonds and become a liquid, all without any change in temperature. This energy removal is the latent heat of condensation, and its magnitude per unit mass is essentially the same as the latent heat of vaporization, just with the opposite sign since the process releases heat instead of absorbing it.

The other ideas describe different processes: vaporization requires adding energy to turn a liquid into vapor, not removing it; heating a liquid above its boiling point is sensible heat that raises temperature rather than causing a phase change; freezing releases latent heat of fusion, which is a different phase change (liquid to solid) and not condensation.