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Specific humidity

Specific humidity is a method of expressing the amount of aqueous vapor in air by using a ratio of water vapor to dry air. Specific humidity is expressed as a ratio of kilogram of water vapor, mw, per kilogram of air, mw.

That ratio can be given as:

x = {m_w \over m_a}

Partial pressure of water vapor and air can also be used to express the ratio.

See also; Humidity, Absolute humidity, Relative Humidity, Concentration.

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Science Fair Project Encyclopedia Contents Page
10-26-2009 08:16:03
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