Phase Changes

Front

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

Back

Melting

Front

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

Back

Freezing

Front

Which state of matter has molecules that slide past each other but stay close together?

Back

Liquid

Front

What happens to particles when the temperature of matter increases?

Back

They speed up and move farther apart.

Front

What is required for all changes in the state of matter of a substance?

Back

Energy

Front

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

Back

Evaporation

Front

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

Back

Condensation

Front

What is the phase change from a solid directly to a gas called?

Back

Sublimation

Front

What is the term for the amount of energy needed to change a substance from solid to liquid?

Back

Heat of fusion

Front

What is the term for the amount of energy needed to change a substance from liquid to gas?

Back

Heat of vaporization