Question

what term describes the amount of energy necessary to change liquid water into water vapor?
heat of vaporization
heat of fusion
specific heat
boiling point

Explanation:

• Heat of vaporization: The energy required to convert a liquid to vapor at its boiling point.
• Heat of fusion: Energy for solid - liquid phase change (e.g., ice to water).
• Specific heat: Energy to change a substance's temperature (not phase).
• Boiling point: Temperature at which liquid turns to vapor (not energy).

Answer:

heat of vaporization