Topic 4 Regents Chemistry Review: Physical Behavior of Matter

Condensation

The process of a gas or vapor changing into a liquid.

Deposition

The direct transition of a substance from a gas to a solid without passing through the liquid phase.

Freezing

The process of a liquid changing into a solid due to losing heat.

Fusion

The process of turning a solid into a liquid by adding heat.

Gaseous Phase

The state of matter where a substance has no definite shape or volume and fills its container.

Heat

Energy transfer between systems due to temperature differences.

Heat of Fusion

The heat needed to change a unit mass of a substance from solid to liquid at its melting point.

Solid Phase

The state of matter with a definite shape and volume, particles arranged in a regular pattern.

Sublimation

The process of a substance transitioning directly from solid to gas without becoming a liquid.

Heat of Vaporization

The heat required to change a unit mass of a substance from liquid to gas at its boiling point.

Temperature

A measure of the average kinetic energy of particles in a substance.

Kinetic Molecular Theory

Explains gas behavior by considering the motion of particles.

Vaporization

The process of a liquid changing into a gas by adding heat.

Liquid Phase

The state of matter where a substance has a definite volume but no definite shape, taking the shape of its container.