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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 a definite volume.
what is 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 a definite or volume. Gas takes the shape and volume of its container
what is kinetic energy? the energy an object has due to its motion.
what is a phase change? the reversible physical change that occurs then a substance changes from one state to another.
what happens in an endothermic change? the system absorbs energy from its surroundings.
what is heat of fusion? the amount of heat required to take a solid to a liquid.
what happens during an exothermic change? the system releases energy to its surroundings.
what is vaporization? the phase change when a liquid turns into a gas.
what is heat of vaporization? the amount of heat required to change a liquid to a gas.
what is vapor pressure? the pressure caused by the collisions of particles in a vapor with the walls of the container.
what is evaporation? the process that changes a substance from a liquid to a gas at temperatures below the substances boiling point.
what is condensation? the phase change that occurs when a substance changes from a gas to a liquid.
what is sublimation? the phase change in which a substance changes from a solid to a gas vapor
what is deposition? when a gas vapor changes directly into a solid without first changing to a liquid.
Created by: oobrien_19
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