Mole Fraction of Water Vapor in Moist Air

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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

x_w = n_w / (n_a + n_w)         (1)

where

x_w = mole fraction of water vapor

n_w = mole of water

n_a = 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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