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If saturated air is cooled further, what will happen to excess water vapour?

Answer and explanation

Correct answer: It can condense into droplets or ice particles

Correct answer: B. Saturated air contains as much water vapour as it can hold at its current temperature. Cooling lowers the amount of vapour that the air can hold, so the excess vapour must leave the gaseous state. It may condense into tiny liquid droplets, forming fog or cloud, or it may deposit or freeze as ice particles when temperatures are sufficiently low. B is correct. A is wrong because cooling does not transform water vapour into oxygen. C is wrong because condensation does not remove atmospheric pressure. D is wrong because water changes state readily when temperature and pressure conditions change. Memory cue: saturation plus further cooling leads to condensation or deposition.

Related tags

Saturated AirCoolingCondensationIce ParticlesHumidityEvaporationAnd CondensationHumidity Evaporation And CondensationWater In The AtmosphereGeography

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