Unit 4 Phases of Matter Vocab

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A place in which their is no matter.

The pressure caused by the weight of the atmosphere. 1 atm.

A form of matter in which the volume and shape of a substance are fixed.

The conversion of a liquid to a vapor when the vapor pressure of the liquid equals the atmospheric pressure. Occurs throughout the liquid.

The amount of force exerted per unit area of a surface.

The process in which a solid changes directly to a gas.

The resistance of a gas or liquid to flow

Made up of very orderly, three-dimensional arrangement of particles.