Question

(a) When an incense stick (agarbatti) is lighted in one corner of a room, its fragrance
(b) A girl is cooking some food in the kitchen. The smell of food being cooked soon reaches her brother's room. Explain how the smell could have reached her brother's room.

Answer 1

Answer:

The smell reaches to distant places due to fast diffusion of the molecules of the substance in air. Also the kinetic energy of the molecules becomes fast due to which it can travel long distances.