1.

How is humidity measured?

Answer»

1. The amount of water vapour in 1 cu.m, of air is called the absolute humidity.

2. Absolute humidity is measured with the help the following formula: 

Absolute humidity

\(\cfrac{Mass\,of \,water\,vapour}{Volume\,of\,air}\)

3. The amount of water vapour present in air expressed as a percentage of the amount needed for saturation at the same temperature is called relative humidity.

4. Relative humidity is measured with the help of the following formula: Relative humidity (%)

\(\cfrac{Absolute\,humidity}{Vapour\,holding\,capacity}\) x 100



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