Phase Changes

Front

What is the phase change from a liquid to a gas that occurs only at the surface?

Back

Evaporation

Front

What term identifies the change from a liquid to gas?

Back

Vaporization

Front

What describes the particle movement in a gas?

Back

Gas has fast-moving particles.

Front

What is the term for when a solid turns directly into a gas?

Back

Sublimation

Front

What is the definition of deposition in terms of phase changes?

Back

Deposition is the phase change from gas to solid.

Front

What is the phase change from a gas to a liquid called?

Back

Condensation

Front

What is the phase change from a liquid to a solid called?

Back

Freezing

Front

What is the term for the energy required to change a substance from solid to liquid?

Back

Heat of fusion.

Front

What is the term for the energy required to change a substance from liquid to gas?

Back

Heat of vaporization.

Front

What happens to the temperature of a substance during a phase change?

Back

The temperature remains constant during a phase change.