For Vapor we have terms and definitions in 7 topics. The topics are Atmospheric Chemistry, Boiler, Climate, Climatology, Environment, Natural Gas and Sanitation.

Vapor (Atmospheric Chemistry)

A substance in the gas state that is below its critical temperature but still suspended in air. It is possible for a vapor to be liquefied by increased pressure. Vapors are usually not visible. [Environmental Pollution; v123; p413-425; 2003] [Atmospheric Environment; v37; p1223-1230; 2003]
Venus- Second planet from the sun; mass 4.872 x 1027g; radius of cloud surface about 6100 Km; radius of solid surface about 6056 Km; surface temperature 737K; temperature of cloud tops 250K; cloud composition more than 75% H2SO4 and about 25% water; atmosphere (by volume) 90-95% CO2 with traces of SO2, water, CO, H2SO4, Ar, Ne, HF, HCl. Atmospheric pressure 92-95 atm. [Hopkins, Jeanne. Glossary of Astronomy and Astrophysics. pg 187; 1980; University of Chicago Press.]

Vapor (Boiler)

The gaseous product of evaporation.

Vapor (Climate)

The gaseous phase of substances that are liquid or solid at atmospheric pressure (e.g., steam).

Vapor (Climatology)

A substance in a gaseous state at a temperature below that necessary for condensation to occur (i.e., the boiling point)

Vapor (Environment)

The gas given off by substances that are solids or liquids at ordinary atmospheric pressure and temperatures.

Vapor (Natural Gas)

The gaseous state of a substance as distinguished from permanent gases. A gaseous fluid may be classified as either a vapor or a gas. If it is near the region of condensation, it is called a vapor. If it is well above the region of condensation, it is called a gas. Vapors in general do not follow the ideal gas law, and engineers prefer to use tables and charts based on experimental data when working with vapors. Gases, however, may obey the ideal gas laws over a wide range of temperature and pressure.

Vapor (Sanitation)

(1) The gaseous form of any substance. (2) A visible condensation suspended in air, such as fog, mist, or cooled steam.

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