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Under which condition will clothes dry faster?

Answer and explanation

Correct answer: Warm and dry air

Correct answer: B, warm and dry air. Clothes dry when the liquid water held in their fibres changes into water vapour. Warm air provides more thermal energy, so more water molecules can escape from the cloth. Dry air contains relatively little water vapour, so it can accept additional vapour more easily. Moving air can also help, but the key comparison in these choices is warm, dry air. A is wrong because cold air gives water less energy and humid air is already rich in vapour, so evaporation is slower. C is wrong because saturated air is holding nearly the maximum moisture possible at that temperature; calm conditions also remove vapour slowly. D is wrong because foggy air is very moist and usually slows evaporation. Memory cue: evaporation is favoured by heat and a moisture deficit; “warm plus dry dries.”

Related tags

GeographyEvaporationDry AirHumidityAnd CondensationHumidity Evaporation And CondensationWater In The AtmosphereClass 12 Mcq

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