Phase changes involve energy release and absorption. Boiling and condensing are phase changes where energy is released.
Melting: The transition from the solid to the liquid phase
Freezing: The transition from the liquid phase to the solid phase
Evaporating: The transition from the liquid phase to the gas phase
Condensing: The transition from the gas phase to the liquid phase
Sublimination: The transition from the solid phase to the gas phase
Deposition: The transition from the gas phase to the solid phase
During boiling and condensing, energy is released as substances change phase by either transitioning to a more energetic state or to a less energetic state. For example, during condensation, a gas transitions to a liquid state releasing energy.
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