Heat, Matter, and Changes in Energy at the Molecular Level

Front

What is the measure of the average kinetic energy of particles?

Back

Temperature

Front

What phase change occurs when a substance transitions from liquid to gas?

Back

Vaporization

Front

What phase change is depicted when a gas turns into a liquid?

Back

Condensation

Front

What is the term for the process of a solid turning directly into a gas?

Back

Sublimation

Front

What is the term for the process of a gas turning into a solid?

Back

Deposition

Front

What happens to the particles in a substance during melting?

Back

The particles gain energy and move apart.

Front

What is the state of matter characterized by a definite shape and volume?

Back

Solid

Front

What is the state of matter that has a definite volume but takes the shape of its container?

Back

Liquid

Front

What is the state of matter that has neither a definite shape nor a definite volume?

Back

Gas

Front

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

Back

The temperature remains constant.