Multiple choice

Fragrance of perfume spreads rapidly in a room. What is the reason behind this phenomenon?

  1. High kinetic energy of particles of vapour

  2. Strong force of attraction among particles

  3. Large number of particles

  4. Lack of definite shape of gas particles

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Gases diffuse very fast into other gases due to high speed of particles and large space between them. Thus, fragrance of perfume spreads rapidly in room.