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प्रश्न
During summer days, water kept in an earthen pot (pitcher) becomes cool because of the phenomenon of :
पर्याय
diffusion
transpiration
osmosis
evaporation
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उत्तर
evaporation
An earthen pot has a large number of extremely small pores on its wall. Some of the water continuously keeps seeping through these pores. This water evaporates continuously and takes the latent heat required for vaporization from the earthen pot and the remaining water. In this way, the remaining water loses heat and gets cooled.
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संबंधित प्रश्न
How does water kept in an earthen pot (matka) become cool during summer?
Why does our palm feel cold when we put some acetone or petrol or perfume on it?
What type of clothes should we wear in summer?
A liquid can change into vapour state at all temperatures.
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Evaporation is a fast process and occurs only at the surface of the liquid.
