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Chapter 3 Vocab

Chapter 3

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 a temperature of 0 K
Charle'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 the particles are are constant
phase change the reversible physical change that occurs when a substance changes from one state of matter to another
endothermic the system absorbs energy from its surroundings
heat of fusion the amount of energy absorbed depends on the substance
exothermic the system releases energy to its surroundings
vaporization the phase change in which a substance changes from a liquid into a gas
heat of vaporization a substance must absorb energy in order to change from a liquid into a gas, the amount of energy when it vaporizes
evaportion the process that changes a substance from a liquid to a gas at temperatures below the substances 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 into 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
depostion when a gas or vapor changes directly into a solid without first changing to a liquid
Created by: morgan.kaisk