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प्रश्न
Why does evaporation cool a liquid ?
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उत्तर
Evaporation cools the surroundings and the rest of the liquid because when a liquid evaporates, it takes up the latent heat of vaporisation from the surroundings and the rest of the liquid present below the surface with which, it is in contact.
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संबंधित प्रश्न
Why does a desert cooler cool better on a hot dry day?
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.
Wet clothes dry more quickly on a warm dry day than on a cold humid day. Explain.
Why is cooling produced on evaporation of a liquid?
How will you demonstrate that water vapour is present in air ?
Which of the following are also considered to be the states of matter ?
- Plasma
- Platelets
- BEC
- BHC
How does the water kept in an earthen pot remain cool?
Comment on the following statements:
Evaporation produces cooling.
When lemon juice is mixed with soda water, they produce brisk effervescence.
