Question

how can we get the smell of perfume sitting several meters away

Answer 1

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→Due to the process of $\bold{Diffusion}$ the gas particles move in all the direction spreading the perfume particles everywhere.

→Moreover, the perfume vapour moves rapidly in all the directions as it is volatile.

→The kinetic energy of the gas molecules is high and the rate of diffusion is high .

→This is the reason that we are able to smell the perfume sitting several meters away because the perfume particles get mixed up with the gaseous particles in the room.

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Answer 2

Answer:

When perfume is released it quickly changes into vapour. The kinetic energy of gas molecules is high & the rate of diffusion is high. Hence we can smell the perfume sitting several metres away.