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प्रश्न
Comment on the following statements:
Rate of evaporation of an aqueous solution decreases with increase in humidity.
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उत्तर
The amount of water present in the air is known as humidity. If the water vapour in the air is already present in a large amounts, it is not able to take up more water through evaporation. Hence, the rate of evaporation of water will decrease. On a dry day, the air absorbs water more readily hence, the rate of evaporation is high on a dry day.
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संबंधित प्रश्न
How does water kept in an earthen pot (matka) become cool during summer?
What type of clothes should we wear in summer?
What is evaporation?
Explain with an example to demonstrates that when a liquid evaporates, it takes heat from its surroundings.
Explain why in hot summer days water remains cool in earthen pots.
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 are we able to sip hot tea or milk faster from a saucer rather than from a cup ?
How does the water kept in an earthen pot remain cool?
Evaporation is a fast process and occurs only at the surface of the liquid.
The process of evaporation is not a good technic to separate salt from seawater give a reason.
