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en.wikipedia.org/wiki/Water_vapor

Water vapor, water vapour or aqueous vapor is the gaseous phase of water. It is one state of ... The amount of water vapor in the air determines how fast each molecule will return to the surface. When a net evaporation occurs, the body of water ...

earthobservatory.nasa.gov/GlobalMaps/view.php?d1=MYDAL2_M_SKY_WV

Water vapor is also the most important greenhouse gas in the atmosphere. Heat radiated from Earth's surface is absorbed by water vapor molecules in the lower ...

www.ucompass.com/met1010/lectures/012698.htm

The amount of water vapor in the air is an approximation of the humidity. ... so a mole of water vapor refers to 6.02 * 10^23 water vapor molecules and a mole of ...

www.dictionary.com/browse/water-vapor

Water vapor definition, a dispersion, in air, of molecules of water, especially as produced by evaporation at ambient temperatures rather than by boiling.

www.ucar.edu/learn/1_1_2_3t.htm

Using physical models, students will be able to explain the molecular behavior of ice, water, and water vapor. Background. Water is an essential part of the earth ...

www.theweatherprediction.com/habyhints/40

Water vapor varies by volume in the atmosphere from a trace to about 4%. Therefore, on average, only about 2 to 3% of the molecules in the air are water vapor ...

www.engineeringtoolbox.com/molecular-weight-gas-vapor-d_1156.html

Molecular mass of some common gases and vapors. ... Gas or Vapor, Molecular Weight (kg/kmole) ... Xylene, xylol, 106.168. Water Vapor - Steam, H2O, 18.02 ...

www.intellicast.com/National/Satellite/WaterVapor.aspx

The amount of water vapor in the air determines how fast each molecule will return back to the surface. When a net evaporation occurs, the body of water will  ...

water.usgs.gov/edu/watercyclecondensation.html

Dec 2, 2016 ... Water molecules in the vapor form are arranged more randomly than in liquid water. As condensation occurs and liquid water forms from the ...