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chapter 3

QuestionAnswer
solid is the state of matter in which materials have a definite shape and a definite volume.
liquid is the state of matter in which a materiel has a definite volume but not a definite shape.
gas is the state of matter in which a material has not definite shape and no definite volume.
kinetic energy is the energy due to motion.
phase change is the reversible physical change that occurs when a substance changes from one state of matter to another.
endothermic the system absorbed energy from its surroundings.
exothermic it releases its energy from its surroundings.
heat fusion the amount of energy absorbed in a substance.
vaporization The phase change in which a substance changes from a liquid to gas.
evaporation is the process that changes a substance from liquid to a gas temperature below boiling point
heat of vaporization One gram of water gains 2261 joules of energy when it vaporizes.
vapor pressure The pressure caused by the collision of this vapor and the walls of its container.
condensation is the phase change in which a substance changes from gas or vapor to liquid.
sublimation is the phase change in which a substance changes from solid to gas.
deposition when gas changes to solid without changing to liquid first.
Created by: wschanhals
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