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Intro to I.S

routhier-pnhs-intro to I.S vocab

QuestionAnswer
What is a solid? A solid is the state of matter in which materials have a definite shape and a definite volume.
What is a liquid? A liquid is the state of matter in which a material has a definite volume but not a definite shape.
What is a gas? A gas 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 its motion.
What is phase change? It is the reversible physical change that occurs when a substance changes from one state of matter to another.
What is endothermic? During an endothermic change, the system absorbs energy from its surroundings.
What is heat of fusion? Heat of fusion is the energy a substance must absorb in order to change from a solid to a liquid.
What is exothermic? During an exothermic change, the system releases energy to its surroundings.
What is vaporization? The phase change in which a substance changes from a liquid into a solid.
What is heat of vaporization? It is the energy a substance must absorb in order to change from a liquid to a gas.
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 the container.
What is condensation? It is the phase change in which a substance changes from a gas or vapor to 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? The phase change, when a gas or vapor changes directly into a solid without first changing to a liquid.
Created by: leda
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