States of Matter (Book)

Changes of State

What are Changes of State?

Changes of state are physical changes in matter. They are reversible changes that do not involve changes in matter’s chemical makeup or chemical properties. Common changes of state include melting, freezing, sublimation, deposition, condensation, and vaporization. These changes are shown in Figure below. Each is described in detail below.

Which process changes a solid to a gas? Which process changes a gas to a solid?