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प्रश्न
Why is cooling produced on evaporation of a liquid?
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उत्तर
The evaporation of a liquid requires heat. This heat is taken from the surroundings like the body, palm, forehead, or finger and its temperature falls and we feel cool.
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संबंधित प्रश्न
How does water kept in an earthen pot (matka) become cool during summer?
State three factors which affect the rate of evaporation of a liquid.
Give two applications of evaporation.
A patient suffering from high fever is advised to put wet clot strips on his forehead. Why?
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The ______ of air is dependent on the temperature of air.
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Comment on the following statements:
Evaporation produces cooling.
Comment on the following statements:
Rate of evaporation of an aqueous solution decreases with increase in humidity.
