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Chapter 3 vocab

Vocab from 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 volume of definite shape.
Kinetic Energy The energy an object has due to it's motion.
Pressure The result of a force distributed over an area.
Absolute Zero A temperature of 0K
Charles's Law The volume of a gas is directly proportional to its temperature if the pressure and number of particles remains the same.
Boyle's Law The volume of gas is inversely proportional to its pressure if the temperature and number of particles remains the same.
Phase Change The reversible physical change that occurs when a substance changes from one state of matter to another.
Endothermic A change that occurs when the system absorbs energy from its surroundings.
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 The phase change in which a substance changes from a liquid to a gas.
Heat of Vaporization The energy a substance must absorb in order to change from a liquid to a gas.
Evaporation The process that changes a substance from a liquid to a gas at temperatures below the substance's 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.
Created by: lee.mcgrath
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