about absolute humidity
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Answer:
Absolute humidity is the measure of water vapor (moisture) in the air, regardless of temperature. It is expressed as grams of moisture per cubic meter of air (g/m3). The maximum absolute humidity of warm air at 30°C/86°F is approximately 30g of water vapor – 30g/m3
Absolute humidity is the quality of water vapor in the wet air of unit volume (1 m3), for which the symbol is ρv. Because water vapor in humid air has the same volume as that of wet air, the absolute humidity is the density of water vapor in the wet air.
ρv=mvV=1vv
where mv is quality of water vapor, V is volume of water vapor, and vv is volume of water vapor in the unit mass.
For saturated wet air, the absolute humidity is the density of dry saturated vapor because the water vapor in it is saturated.
ρ″v=1v″v
where v″v is volume of the unit mass of saturated water vapor
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The actual amount of water vapour present in the atmosphere is called absolute humidity . It is measured as the amount of water vapour present per cubic metre volume of air (g/m³) .