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Chem 2.1-2.3
Solids, Liquids, and Gases
| Term | Definition |
|---|---|
| temperature | How hot or cold something is; a measure of the average energy of motion of the particles of a substance. |
| ice | Water in the solid form. |
| energy | The ability to do work or cause change. |
| solid | A state of matter that has a definite shape and a definite volume. |
| crystalline solid | A solid that is made up of crystals in which particles are arranged in a regular, repeating pattern. |
| amorphous solid | A solid made up of particles that are not arranged in a regular pattern. |
| liquid | A state of matter that has no definite shape but has a definite volume. |
| fluid | Any substance that can flow. |
| surface tension | The result of an inward pull among the molecules of a liquid that brings the molecules on the surface closer together; causes the surface to act as if it has a thin skin. |
| viscosity | A liquid’s resistance to flowing. |
| gas | A state of matter with no definite shape or volume. |
| pressure | The force pushing on a surface divided by the area of that surface. |
| melting | The change in state from a solid to a liquid. |
| melting point | The temperature at which a substance changes from a solid to a liquid; the same as the freezing point, or temperature at which a liquid changes to a solid. |
| freezing | The change in state from a liquid to a solid. |
| vaporization | The change of state from a liquid to a gas. |
| evaporation | The process by which molecules at the surface of a liquid absorb enough energy to change to a gas. |
| boiling | Vaporization that occurs at and below the surface of a liquid. |
| boiling point | The temperature at which a liquid boils. |
| condensation | The change of state from a gas to a liquid. |
| sublimation | The change in state from a solid directly to a gas without passing through the liquid state. |
| Charles's Law | A principle that describes the relationship between the temperature and volume of a gas at constant pressure. |
| directly proportional | A term used to describe the relationship between two variables whose graph is a straight line passing through the point (0, 0). |
| Boyle's Law | A principle that describes the relationship between the pressure and volume of a gas at constant temperature. |
| inversely proportional | A term used to describe the relationship between two variables whose product is constant. |
Created by:
mgershen
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