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Chapter 3

Vocab words

TermDefinition
solid the state of matter in which materials have a definite shape and a definite volume
liquid the state of matter in which a material has a definite volume but not a definite shape
gas the state of matter in which a material has neither a definite shape nor a definite volume`
kinetic energy the energy an object has due to its motion
pressure the result of a force distributed over an area
absolute zero temperature at 0 K
Charles's law states that the volume of a gas is directly proportional to its temperature in kelvins if the pressure and the number of particles of the gas are constant
Boyle's law states that the volume of a gas is inversely proportional to its pressure if the temperature and the number of [articles are constant
phase change the reversible physical change that occurs when a substance changes from one state of matter to another
endothermic a description of a change in which a system absorbs energy from its surrounding
heat of fusion the energy a substance must absorb in order to change from a solid to a liquid
exothermic a description of a change in which a system releases energy to its surroundings
vaporization phase change in which a substance changes from a liquid into a gas
heat of vaporization the energy a substance must absorb in order to change from liquid to a gas
evaporation process that changes a substance from a liquid to a gas at temperatures below the substance's boiling point
vapor pressure pressure caused by the collisions of this vapor and the walls of the container
condensation the phase change in which a substance changes from a gas or vapor to a liquid
sublimation the phase change in which a substance changes from a solid to a gas or vapor without changing to a liquid first
deposition gas or vapor change directly into a solid without first changing to a liquid
Created by: cameryn.lee
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