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3.1 and 3.3

states of matter

QuestionAnswer
What is a solid? The state of matter in which materials have a definite shape and volume
What us a liquid? The state of matter in which a material has a definite volume, but not a definite shape.
What is a gas? The state of matter in which a material has neither definite shape, or definite volume.
What is kinetic energy? The energy an object has due to its motion.
What is phase change? The reversible physical change that occurs when a substance changes from one state of matter to another.
What happens when an endothermic change occurs? During an endothermic change, the system absorbs energy from its surroundings.
What is heat of fusion? It is the amount of heat required to take a solid to a liquid.
What happens during an exothermic change? 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 to a gas.
What is heat of vaporization? An endothermic process in which a substance must absorb energy in order to change from a liquid top a gas.
What is evaporation? The process that changes a substance from a liquid to a gas at temperatures above the substance's melting point.
What is vapor pressure? The pressure cause by the collisions of this vapor and the walls of the container.
What is condensation? The phase change in which a substance changes from a gas or vapor to a liquid.
What is the sublimation? The phase change in which a substance changes from a solid to a gas or vapor without changing into a liquid first.
What is deposition? When a gas or vapor changes directly into a solid without first changing into a liquid.
Created by: ClarisaGusman
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