vapor - définition. Qu'est-ce que vapor
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Qu'est-ce (qui) est vapor - définition

A SUBSTANCE IN THE GAS PHASE AT A TEMPERATURE LOWER THAN ITS CRITICAL POINT
Vapour; Vapor phase
  • Liquid–vapor equilibrium
  • Invisible water vapor condenses to form visible water droplets called mist
  • equilibrium]]
  • equilibrium]] value, it becomes [[supersaturated]] and [[condenses]] on any available [[nucleation]] sites e. g. [[particles]] of dust. This principle is used in [[cloud chamber]]s, where particles of [[radiation]] are visualized because they [[nucleate]] formation of water droplets.

vapor         
¦ noun US spelling of vapour.
vapor         
see vapour
Vapor         
·noun Wind; flatulence.
II. Vapor ·noun To emit vapor or fumes.
III. Vapor ·noun An old name for hypochondria, or melancholy; the blues.
IV. Vapor ·noun To talk idly; to boast or vaunt; to Brag.
V. Vapor ·noun A medicinal agent designed for administration in the form of inhaled vapor.
VI. Vapor ·vt To send off in vapor, or as if in vapor; as, to vapor away a heated fluid.
VII. Vapor ·noun Something unsubstantial, fleeting, or transitory; unreal fancy; vain imagination; idle talk; boasting.
VIII. Vapor ·noun Any substance in the gaseous, or aeriform, state, the condition of which is ordinarily that of a liquid or solid.
IX. Vapor ·noun In a loose and popular sense, any visible diffused substance floating in the atmosphere and impairing its transparency, as smoke, fog, ·etc.
X. Vapor ·noun To pass off in fumes, or as a moist, floating substance, whether visible or invisible, to steam; to be exhaled; to Evaporate.

Wikipédia

Vapor

In physics, a vapor (American English) or vapour (British English and Canadian English; see spelling differences) is a substance in the gas phase at a temperature lower than its critical temperature, which means that the vapor can be condensed to a liquid by increasing the pressure on it without reducing the temperature of the vapor. A vapor is different from an aerosol. An aerosol is a suspension of tiny particles of liquid, solid, or both within a gas.

For example, water has a critical temperature of 647 K (374 °C; 705 °F), which is the highest temperature at which liquid water can exist at any pressure. In the atmosphere at ordinary temperatures gaseous water (known as water vapor) will condense into a liquid if its partial pressure is increased sufficiently.

A vapor may co-exist with a liquid (or a solid). When this is true, the two phases will be in equilibrium, and the gas-partial pressure will be equal to the equilibrium vapor pressure of the liquid (or solid).

Exemples du corpus de texte pour vapor
1. In fact BP had a simple vent stack for dispersing vapor into the air and the stack was only designed to handle small amounts of vapor.
2. Styrene vapor irritates the eyes, the nose and the throat.
3. In political parlance, "Tiny" was a "vapor," or "ghost," ad.
4. They spew vapor and fine ice water particles that have become ice crystals.
5. This suggests that vapor and dust–sized icy material are coming from the tiger stripes.