More example sentences.

Thus, e-cigarette “vapor” is arguably not really stable enough to technically qualify as an aerosol. 1. water vapor - water in a vaporous form diffused in the atmosphere but below boiling temperature. Compare with gas. Vapor is any substancein the gaseouscondition at the maximumof densityconsistent with that condition.

It is the process whereby atoms or molecules in a liquid state (or solid state if the substance sublimes) gain sufficient energy to enter the gaseous state. When water is heated, it turns into its gas form, called water vapor.
Learn more. vapor meaning: 1. gas or extremely small drops of liquid that result from the heating of a liquid or solid: 2. a…. Search the Dictionary for More Terms. THE AMERICAN HERITAGE® DICTIONARY OF THE ENGLISH LANGUAGE, FIFTH EDITION by the Editors of the American Heritage Dictionaries.

Pwv =vapor pressure of water (kPa, atm, or mmHg). A gasformed by boiling or evaporating a liquid. one normally liquid or solid: dense clouds of smoke and toxic vapor | chemical vapors. Vapour pressure, pressure exerted by a vapour when the vapour is in equilibrium with the liquid or solid form, or both, of the same substance—i.e., when conditions are such that the substance can exist in both or in all three phases. [ vā ′pər ] The gaseous state of a substance that is normally liquid or solid at room temperature, such as water that has evaporated into the air. vapor. ‘A vapor is the gaseous phase of a substance that, under ordinary conditions, exists as a liquid or solid.’.

For example, water has a critical temperature of 705°F (374°C), which is the highest temperature at which liquid water can exist. In the strictest sense air barriers are also vapor barriers when they control the transport of moisture-laden air. For instance, the fumes that arise when volatile substances such as alcohol and gasoline evaporate are (not surprisingly) a vapor. (CC BY-SA-NC; Anonymous by request) The equilibrium vapor pressure of a substance at a particular temperature is a characteristic of the material, like its molecular mass, melting point, and boiling point (Table 11.4). Physics count noun A gaseous substance that is below its critical temperature, and can therefore be liquefied by pressure alone. The concentration of the vapour and, therefore, the pressure that it exerts increase as the temperature is raised. A mixture of fine droplets of a substance and air, as the fuel mixture of an internal-combustion engine. Vapor definition: visible particles of moisture floating in the air, as fog , mist , or steam | Meaning, pronunciation, translations and examples (vā′pər) n. 1. water vapour. Alternative forms: vapour He’d laugh to see one throw his heart away, Another, sighing, vapor forth his soul. In gas supersaturation work as it relates to bubble formation or GBD, only the partial pressures of oxygen, nitrogen, argon, carbon dioxide, and water vapor are considered. Physics count noun A gaseous substance that is below its critical temperature, and can therefore be liquefied by pressure alone. The most abundant liquid on Earth is water.
(noun) An example of vapor is fog. (Science: physics) Any substance in the gaseous, or aeriform, state, … See more at vapor pressure. Here are some related terms and definitions we found for this term. (B. Jonson) 1.

Compare with gas.

When water is heated, it turns into its gas form, called water vapor. Vapor Diffusion.

Even without leaks, small amounts of moisture in the form of water vapor can pass directly through a building’s envelope, through a process called diffusion.


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