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प्रश्न
What is evaporation?
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उत्तर १
“The change of state of a liquid to vapour at all temperatures from the surface of the liquid is called evaporation.”
उत्तर २
Evaporation is the process by which water changes its state from liquid to water vapour (gaseous state) due to heat from the Sun or any other heat source. It mostly occurs from water bodies, wet or irrigated soil, wet clothes, etc. Although mainly a daytime phenomenon, evaporation is a continuous process with varying degrees.
Factors that increase the rate of evaporation include clear skies, wind (which replaces moist air with dry air that can hold more moisture), an increase in surface area (like spreading wet clothes), and higher air temperatures (which increase the air’s capacity to hold water vapour).
संबंधित प्रश्न
How does water kept in an earthen pot (matka) become cool during summer?
Why is cooling produced on evaporation of a liquid?
Explain why in hot summer days water remains cool in earthen pots.
Why are we able to sip hot tea or milk faster from a saucer rather than from a cup ?
Why does our palm feel cold when we put some acetone (or perfume) on it ?
Which of the following are also considered to be the states of matter ?
- Plasma
- Platelets
- BEC
- BHC
During summer days, water kept in an earthen pot (pitcher) becomes cool because of the phenomenon of :
Give a geographical reason:
Air becomes saturated.
Can you suggest a method to collect water from sea water?
Comment on the following statements:
Evaporation produces cooling.
