Copyright © Philip M. Parker, INSEAD. Terms of Use.
| Domain | Definition |
Aerospace | 1. The temperature above which a substance cannot exist in the liquid state, regardless of the pressure. 2. As applied to reactor overheat or afterheat, the temperature at which the least resistant component of the reactor core begins to melt down.3. As applied to materials, the temperature at which a change in phase takes place causing an appreciable change in the properties of the material. (references) |
Mining | A. The temperature of a system at its critical point; for a one-component system; that temperature above which a substance can exist only in the gaseous state, no matter what pressure is exerted. See also:temperature b. Transformation temperature. c. The temperature at which a change takes place in the physical form of a substance; e.g., the change of diamond to the amorphous form of carbon begins at a temperature of 1,800 degrees F (982 degrees C) in the presence of oxygen d. Synonymous for critical point if the pressure is constant e.g., the change of diamond to the amorphous form of carbon begins at a temperature of 1,800 degrees F (982 degrees C) in the presence of oxygen. (references) |
Source: compiled by the editor from various references; see credits. | |
(From Wikipedia, the free Encyclopedia)
Critical properties vary from material to material, just as is the case for the melting point and boiling point. Critical properties for many pure substances are readily available in the literature. Obtaining critical properties for mixtures is somewhat more problematic.
For the case of pure substances, there is an inflexion point in the critical isotherm on a PV diagram. This means that at the critical point:
Sometimes a set of reduced properties are defined in terms of the critical properties, ie.:
Two immiscible liquids, such as oil and water, will also have a critical temperature and pressure at which the two phases will become consolute.
Critical temperature of selected elements
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See also Critical exponents.
Source: adapted by the editor from Wikipedia, the free encyclopedia under a copyleft GNU Free Documentation License (GFDL) from the article "Critical temperature."
Crosswords: CRITICAL TEMPERATURE |
| English words defined with "CRITICAL TEMPERATURE": critical. (references) |
| Specialty definitions using "CRITICAL TEMPERATURE": Ac-point, Ar-point, arrest point ♦ critical pressure ♦ noncondensable gas. (references) |
| The following statistics estimate the number of searches per day across the major English-language search engines as identified by various trade publications. Hyperlinks lead to commercial use of the expression at Amazon.com. |
| Expression | Frequency per Day |
critical temperature | 5 |
| Source: compiled by the editor from various references; see credits. | |
| Language | Translations for "CRITICAL TEMPERATURE"; alternative meanings/domain in parentheses. | ||||||||||||||||
Danish | under sensibilisering i det kritiske temperaturomraade udfaeldes dette kulstof in situ (during sensitisation at the critical temperature interval this carbon is precipitated in situ). (various references) | ||||||||||||||||
Dutch | tijdens de verhitting in het kritische temperatuurgebied scheidt de koolstof zich uit op de plaats waar het zich bevindt (during sensitisation at the critical temperature interval this carbon is precipitated in situ). (various references) | ||||||||||||||||
Finnish | herkistyminen (during sensitisation at the critical temperature interval this carbon is precipitated in situ, proneness to intergranular corrosion after a solubilising and sensitising treatment, sensitisation, sensitization). (various references) | ||||||||||||||||
French | durant le traitement de sensibilisation ce carbone est précépité in situ (during sensitisation at the critical temperature interval this carbon is precipitated in situ). (various references) | ||||||||||||||||
German | waehrend der Sensibilisierung im Bereich der kritischen Temperatur schlaegt sich dieser Kohlenstoff in Situ nieder (during sensitisation at the critical temperature interval this carbon is precipitated in situ). (various references) | ||||||||||||||||
Greek | κρίσιμη θερμοκρασία. (various references) | ||||||||||||||||
Hungarian | kritikus hőmérséklet. (various references) | ||||||||||||||||
Italian | durante la sensibilizzazione nell'intervallo critico di temperatura, questo carbonio precipita in situ (during sensitisation at the critical temperature interval this carbon is precipitated in situ). (various references) | ||||||||||||||||
Pig Latin | iticalcray emperaturetay критическая температура. (various references) este carbono precipita in situ durante la sensibilización en el intervalo crítico de temperatura (during sensitisation at the critical temperature interval this carbon is precipitated in situ). (various references) | ||||||||||||||||
Copyright © Philip M. Parker, INSEAD. Terms of Use.
