Question
Sun June 01, 2008 By: Kruthika Ved

what is relative humidity?if the RH is 50%,air contains abouthow much water vapour?

Expert Reply
Fri June 13, 2008

The relative humidity of an air-water mixture is defined as the ratio of the partial pressure of water vapor in the mixture to the saturated vapor pressure of water at a given temperature. Relative humidity is expressed as a percentage

 

p(H2O) is the partial pressure of water vapor in the mixture; and
p * (H2O) is the saturation vapor pressure of water at the temperature of the mixture

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