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Give Reasons for the Following:Why does a desert cooler cool better on a hot dry day? |
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Answer» The humidity (amount of water vapour present in the air) is low on a dry day. Being a hot dry day, the temperature is high and the humidity is low. The rate of evaporation increases with i. increase in temperature ii. decrease in humidity Therefore the rate of evaporation and hence the cooling effect due to evaporation is high on a hot dry day. Thus, desert cooler cools better on a hot dry day. |
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