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Mole Fraction of Water Vapor in Moist Air

Mole fraction of water vapor expresses the ratio of water molecules - to air and water molecules

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The mole fraction of water vapor is the ratio of the number of mole of water vapor in the moist air - to the total number of mole of dry air and water vapor.

The mole fraction of water vapor in moist air can be expressed as

xw = nw / (na + nw)         (1)

where

xw = mole fraction of water vapor

nw = mole of water

na = mole of air

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Related Topics

  • Air Psychrometrics The study of moist and humid air - air condition - psychrometric charts, Mollier diagrams, air temperature, absolute and relative humidity, moisture content and more ..

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