Question

we can get the smell of perfume sitting several metres away give me answer

Answer 1

Hey Friend,

Answer - 
The phenomenon responsible for this is diffusion.

Explanation -
In gases, the molecules are far apart and are in constant random motion. Due to this property of gases, the molecules are able to distribute evenly throughout the space in which they are enclosed.

Reason -
Molecules of perfume move from a region of higher concentration to a region of lower concentration. The molecules of gas diffuse at a faster rate and and are evenly distributed...thus, a person sitting several meters away and smell it too...

Hope it helps!

Answer 2

Heya mate,
Here is yor answer,

We can get the smell of perfume sitting several metres away as particles of matter are continuously moving. They posses kinetic energy. As the particles of perfume are very very small they intermix with the particles of air in no time { this is called diffusion }. And the smell of the perfume go along with the air several metres away and reaches us.

Hope this helps

if you have any further doubt or want any help, feel free to ask me. I would like to help.

Thank you

#Sneha
brainly benefactor