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17 Cards in this Set
- Front
- Back
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Solid
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The state of matter in which materials have a DEFINITE SHAPE AND A DEFINITE VOLUME.
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Liquid
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The state of matter in which a material has a DEFINITE VOLUME and INDEFINITE SHAPE.
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Gas
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The state of matter in which a material has an INDEFINITE SHAPE AND INDEFINITE VOLUME.
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Kinetic energy
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The energy an object an object has due to its motion.
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Pressure
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The result of a force distributed over an area.
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Absolute zero
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A temperature of 0 degrees Kelvin
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Phase Change
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The reversible physical change that occurs when a substance changes from one state of matter to another.
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Endothermic
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The system absorbs energy from its surroundings.
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Heat of fusion
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Varies from substance to substance and is the amount of energy required to melt an object.
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Exothermic
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The system releases energy into its surroundings. Varies from substance to substance.
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Vaporization
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The phase change in which a substance changes from a liquid into a gas. Is an endothermic process.
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Heat of vaporization
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Varies from substance to substance. Is the amount of energy required to change an object from a liquid to a gas.
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Evaporation
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The process that changes a substance from a liquid to a gas at temperatures below the substance's boiling point.
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Vapor pressure
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The pressure caused by collisions of vapor and the walls of the container.
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Condensation
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The phase change in which a substances changes from a gas or vapor to a liquid.
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Sublimation
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The phase change in which a substance changes from a solid to a gas or vapor without changing to a liquid first.
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Deposition
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The phase change in which a gas or vapor changes directly into a solid without first changing into a liquid.
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