Nelson ADV PS CH 3 Key Terms

19 terms by ryschell

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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 kelvins

Charles's Law

the direct proportion of the volume of a gas to its temperature (in kelvins) if the pressure and the number of particles of the gas are constant

Boyles's Law

the inverse variation of the volume of a gas with its pressure if the temperature and the number of particles are constant

Phases Change

a 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 surroundings

heat of fusion

the energy a substance must absorb to change from a solid to a liquid

exothermic

a description of a change in which a system releases energy to its surroundings

vaporization

the 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 a liquid to gas

evaporation

the process that changes a substance from a liquid to a gas at temperatures below the substances boiling point

vapor pressure

the pressure caused by the collisions of particles in a vapor with the walls of a 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

the phase change in which a gas or vapor changes directly into a solid without first changing into a liquid

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