Phases of Matter 2024

Front

What is sublimation?

Back

Sublimation is the phase change in which a solid turns directly into a gas without passing through the liquid phase.

Front

What happens to the particles of a substance as it melts?

Back

As a substance melts, its particles move farther apart, transitioning from a solid to a liquid state.

Front

What type of kinetic energy do gas particles have?

Back

Gas particles have the most kinetic energy because they move the fastest.

Front

What is the role of heat in phase changes?

Back

Heat is the energy added to or removed from matter to cause a phase change.

Front

What is condensation?

Back

Condensation is the phase change where a gas turns into a liquid.

Front

What is deposition?

Back

Deposition is the phase change where a gas turns directly into a solid without becoming a liquid first.

Front

What occurs during freezing?

Back

During freezing, a liquid loses heat and its particles move closer together to form a solid.

Front

What is the boiling point?

Back

The boiling point is the temperature at which a liquid turns into a gas.

Front

What is the melting point?

Back

The melting point is the temperature at which a solid turns into a liquid.

Front

How does pressure affect phase changes?

Back

Increasing pressure can raise the boiling point of a liquid and can also affect the melting point.