Phase Changes

Front

What is the process called when a liquid changes to a solid?

Back

Freezing

Front

What is evaporation?

Back

The process of a liquid turning into a gas, often observed as a puddle disappearing.

Front

What is the term for the change from liquid to gas?

Back

Evaporation

Front

What is condensation?

Back

The process of gas changing to liquid.

Front

True or False: All phase changes require heat energy to be added or taken away.

Back

True

Front

What is the process called when a solid changes directly to a gas?

Back

Sublimation

Front

What is the reverse process of sublimation?

Back

Deposition

Front

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

Back

The temperature remains constant during a phase change.

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