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3.1 and 3.3

Malaguti-pnhs-intro to I.S. vocab

QuestionAnswer
What is a solid? It is the state of matter in which materials have a definite shape and definite volume.
What is a liquid? It is the state of a matter in which a material has a definite volume but not a definite shape.
What is a gas? It is the state of matter in which a material has neither a definite shape nor a definite volume.
What is kinetic energy? It is the energy an object has due to it motion.
What is a phase change? It is the reversible physical change that occurs when a substance changes from one state of matter to another.
What is an endothermic change? The system absorbs energy form its surroundings.
What is heat of fusion? It is the amount of energy of water when it melts.
What is exothermic change? The system releases energy to its surroundings.
What is vaporization? It is the phase change in which a substance changes from a liquid into a gas.
What is the heat of vaporization? The amount of energy of water when it vaporizes.
What is evaporation? It is 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 of this vapor and the walls of their container.
What is condensation? The phase change in which a substance changes from a gas or vapor to a liquid.
What is sublimation? It is 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? When a gas or vapor changes directly into a solid without first changing to a liquid.
Created by: brisoc3
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