How the water kept in mud pot during summer get cold?
Answers
Answer:
through the pore water get evaporated quickly and it causes of cooling
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Answer:
This is because of evaporation. When a liquid changes to a gaseous (or vapour) state without boiling, it is known as evaporation.
The earthen pot is made of mud and has many minute pores (extremely small holes). Through these pores that the water, placed inside the earthen pot oozes out. Now, to evaporate, the water needs to absorb heat, which will change it to vapour.
The only way the water oozing out of the earthen pot can turn to vapour is by absorbing heat from the liquid within the earthen pot and the earthen pot itself. Due to this process of continuous absorption of heat from the water inside the matka, in a few hours, this water becomes cool.
Glass and metal do not have any pores. So the water placed inside glass and metal vessels cannot seep out and evaporate. Therefore, the water inside remains hot.
Similarly, because the sweat, that is oozing out of the pores in our skin, evaporates in the fan’s breeze. The heat needed for the sweat to evaporate is absorbed from the object it comes in contact with (our body) and so we feel cooler.
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