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How is humidity measured? |
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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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