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Gas is a state of matter with neither fixed volume nor fixed shape. It is a compressible form of fluid, in contrast to a liquid. A pure gas consists of individual atoms (e.g. a noble gas like neon), or molecules (e.g. oxygen (O2) or carbon dioxide). Pure gases can also be mixed together such as in the air. What distinguishes gases from liquids and solids…
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gases pressure volume temperature particles molecules ideal energy system specific forces law density properties one state number kinetic intermolecular used
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Gas | is a | state of matter with neither fixed volume nor fixed shape | 0.90 | text |
| Gas | is a | ideal gas law and reads P V | 0.90 | text |
| Gas | is a | simplified | 0.90 | text |
| Gas | is a | term used for a gas which has a critical temperature below the range of normal human-habitable temperatures and therefore cannot be liquefied by pressure within this range | 0.90 | text |
| in the air | instance of | Pure gases can also be mixed together | 0.80 | text |
| Robert Boyle | instance of | These four characteristics were repeatedly observed by scientists | 0.80 | text |
| Jacques Charles | instance of | These four characteristics were repeatedly observed by scientists | 0.80 | text |
| John Dalton | instance of | These four characteristics were repeatedly observed by scientists | 0.80 | text |
| Joseph Gay-Lussac | instance of | These four characteristics were repeatedly observed by scientists | 0.80 | text |
| Amedeo Avogadro for a variety of gases in various settings | instance of | These four characteristics were repeatedly observed by scientists | 0.80 | text |
| iron which are incompressible compared to gases | instance of | This concept is easier to visualize for solids | 0.80 | text |
| viscosity | instance of | Van der Waals forces play a key role in determining nearly all physical properties of fluids | 0.80 | text |
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