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What is a solid? State of matter where the object has a definite shape and volume
What is a liquid? State of matter where the object has a definite volume but not a definite shape.
What is a gas? State of matter where the object has neither a definite shape nor volume.
What is kinetic energy? The amount of energy an object has due to motion.
What is a phase change? A reversible physical change that occurs when one substance from one state of matter to another.
What is endothermic? A description of a change in which a system absorbs energy from its surroundings.
What is heat of fusion? The amount of energy a substance must absorb in order to change from a solid to a liquid.
What is exothermic? A description of a change in which a system releases energy to its surroundings.
What is vaporization? A phase change in which a substance changes from a liquid to a gas.
What is heat of vaporization? The energy a substance must absorb in order to change from a liquid to a gas.
What is evaporation? The process that changes a substance from a liquid to a gas at temperatures below the substance's boiling point.
What is vapor pressure? The pressure caused by the collisions in particles in a vapor with the walls of a container.
What is condensation? The phase change in which a substance changes from a gas or vapor in a liquid.
What is sublimation? The phase change in which a substance changes from a solid to a gas or vapor without changing to a liquid first.
What is deposition? The phase change in which a gas or vapor changes directly into a solid without first changing into a liquid.
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