Phase Changes

A phase change is the transformation of a substance from one state of matter to another, such as solid, liquid, or gas.

The three main states of matter are solid, liquid, and gas.

During melting, particles gain energy and move more freely, transitioning from a solid to a liquid.

Vaporization is the phase change from a liquid to a gas.

Condensation is the phase change from a gas to a liquid.

Sublimation is the phase change from a solid directly to a gas without becoming a liquid.

Deposition is the phase change from a gas directly to a solid without becoming a liquid.

Temperature affects phase changes by providing or removing energy, which can cause a substance to change from one state to another.

Energy is required to be added or removed during phase changes to overcome or establish the forces between particles.

During freezing, a liquid loses energy and its particles move closer together, forming a solid.