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Introduction to ES
Souza pnhs intro to ish vocab
Term | Definition |
---|---|
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 material has a definite volume but not a definite shape. |
Gas | Is the state of matter in which a material has neither a definite shape nor a definite volume. |
Kinetic Energy | Is the energy an object has due to its motion. |
Phase Change | Is the reversible physical change that occurs when a substance changes from one state of matter to another |
Endothermic | Is the system that 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 into a gas. |
Heat of Vaporization | The energy a substance must absorb in order to change from a liquid into 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. |