8.1.5 Phase Changes

Front

What is a solid?

Back

A solid is a state of matter that has a definite shape and volume, and does not take the shape of its container.

Front

What is evaporation?

Back

Evaporation is the process by which a liquid changes into a gas, usually when heat is applied.

Front

What is vaporization?

Back

Vaporization is the phase change from liquid to gas, which can occur through evaporation or boiling.

Front

What happens during melting?

Back

Melting is the process where a solid turns into a liquid when heat is applied.

Front

What is condensation?

Back

Condensation is the process by which a gas changes into a liquid, often when it cools down.

Front

What is the phase change diagram?

Back

A phase change diagram visually represents the states of matter (solid, liquid, gas) and the transitions between them, such as melting, freezing, evaporation, and condensation.

Front

What occurs when energy is added to a solid?

Back

When energy is added to a solid, it can change into a liquid through the process of melting.

Front

What is the difference between boiling and evaporation?

Back

Boiling occurs at a specific temperature throughout the liquid, while evaporation can happen at any temperature and only at the surface of the liquid.

Front

What is freezing?

Back

Freezing is the process where a liquid turns into a solid when heat is removed.

Front

What is the relationship between temperature and phase changes?

Back

Temperature affects the energy of particles; increasing temperature can cause melting or evaporation, while decreasing temperature can cause freezing or condensation.