Archit dropped a crystal of potassium permanganate into two beakers $A$ and $B$ containing hot water and cold water respectively. After keeping the beakers undisturbed for some time,what did he observe and why?

(N/A) Observation: The purple color of potassium permanganate spreads more rapidly throughout the beaker containing hot water $(A)$ compared to the beaker containing cold water $(B)$.
Reason: Diffusion is the movement of particles from a region of higher concentration to a region of lower concentration. The rate of diffusion is directly proportional to temperature. As the temperature of the water increases,the kinetic energy of the water molecules increases,which causes the potassium permanganate particles to move and mix more quickly.