Physics 0625 · IGCSE · Thermal properties and temperature

Thermal properties and temperature — practice question

When a liquid evaporates, the molecules with the greatest energy leave first. The temperature of the liquid that is left changes. Which row states where these molecules leave from and describes how the temperature changes?

  • Amolecules escape from the body of the liquid; temperature of remaining liquid decreases
  • Bmolecules escape from the body of the liquid; temperature of remaining liquid increases
  • Cmolecules escape from the surface of the liquid; temperature of remaining liquid decreases
  • Dmolecules escape from the surface of the liquid; temperature of remaining liquid increases

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