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प्रश्न
Give two applications of evaporation.
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उत्तर
Two applications of evaporation:
- When we sprinkle water on the roads in the summer evening, water evaporates by taking heat from the road and produces coolness in the surroundings and it becomes pleasant.
- After taking a bath in summer when we come out of the water, water evaporates taking heat from our body. The temperature of body falls and we feel refreshed.
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संबंधित प्रश्न
A liquid can change into vapour state at all temperatures.
Would you cool a bucket of water more quickly by placing it on ice or by placing ice in it? Give reasons for your answer.
If the back of your hand is moistened with alcohol, you will find that it rapidly becomes dry. Why is it that while it is drying, your hand feels cool ?
Why does evaporation cool a liquid ?
Which of the following are also considered to be the states of matter ?
- Plasma
- Platelets
- BEC
- BHC
The evaporation of water increases under the following conditions :
The ______ of air is dependent on the temperature of air.
Give a geographical reason:
Air becomes saturated.
Evaporation of water from lakes and river ______.
The process of evaporation is not a good technic to separate salt from seawater give a reason.
