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  • During summer, water kept in an earthen pot becomes cool because of the phenomenon of (a) diffusion (b) nspiration (c) osmosis (d) evaporation

During summer, water kept in an earthen pot becomes cool because of the phenomenon of

(a) diffusion

(b) transpiration

(c) osmosis

(d) evaporation

 

Answers (1)

Ans. D

Sol.

The old Indian method to cool down the water is to store it in earthen pots.

These pots have pores in them, by which evaporation of water takes place.
In this Phenomenon, some water molecules get energy from the remaining water molecules in the pot and evaporate. Escape of high-energy molecules from water leads to loss of heat in remaining water. As the remaining water loses heat, its temperature decreases.
Transpiration is the phenomenon of water movement and evaporation in plants.
In case of diffusion, the molecules of matter moves from higher concentration to lower concentration.
In osmosis, the solvent tends to move through a semi permeable membrane from low concentration to high concentration.

Hence, the correct option is D.

Posted by

Gurleen Kaur

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