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What does a relative humidity value of 100 percent mean?

Answer and explanation

Correct answer: The air is saturated

Correct answer: A. Relative humidity compares the actual water vapour present in air with the maximum water vapour that air can hold at the same temperature. A value of 100 percent means the air has reached its saturation level for that temperature. It does not mean that the air is made only of water vapour or that it contains no other gases. If saturated air cools further, excess water vapour may condense into droplets or ice. B is the opposite of the meaning. C is chemically incorrect because ordinary air contains several gases. D is not a definition of relative humidity. Memory cue: 100 percent relative humidity means ‘full at that temperature,’ not 100 percent water vapour.

Related tags

GeographyRelative HumiditySaturationWater VapourHumidityEvaporationAnd CondensationHumidity Evaporation And CondensationWater In The AtmosphereClass 12 Mcq

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