Question

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

Answer 1

This is because of diffusion, kinetic energy

Hope it help you buddy

Answer 2

This happens because there is very less intermolecular force of attraction and more intermolecular space between the particles of matter in perfume and hence the process of diffusion is faster in perfume as it is faster in gases then solids and liquids.

Hope it helps.

Best of luck Buddy for the exams.