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Intro to I.S
Walsh-pnhs-intro to I.S vocab
Question | Answer |
---|---|
The state in matter in which materials have definite shape and definite volume. | Solid |
Is the state of matter in which it has a definite volume, but no definite shape. | Liquid |
The state of matter in which the material has no definite shape or volume. | Gas |
The energy an object has due to its motion. | Kinetic energy |
Is the reversible physical change that occurs when a substance changes from one state of matter to another. | Phase Change |
The system absorbs energy from its surroundings. | Endothermic |
Another term for meltiing | Heat of fusion |
The system releases energy to its surroundings. | Exothermic |
The phase change in which a substance changes from a liquid into a gas | Vaporization |
Varies from substance to substance | Heat of vaporization |
The process that changes a substance from a liquid to a gas at temperatures below the substances boiling point. | Evaporation |
The pressure cause by collisions of this vapor and the walls of the container | Vapor pressure |
The phase change in which a substance changes from gas or vapor to a liquid. | Condensation |
The phase change in which a substance changes from solid to a gas or vapor without changing to a liquid first. | Sublimation |
When a gas or vapor changes directly into a solid with our first changing into a liquid | Deposition |