Question

even two or three crystals of potassium per magnet can impart colour to a very large volume of water with characteristic of particles of matter is illustrated by this observation​

Answer 1

Hey mate, here's ur answer,

Even two-three crystals of “potassium per magnet” can impart colour to a “large volume of water” due to the natural phenomenon of diffusion.

Diffusion is a process in which the solute particles move from regions of "high concentration to regions" of "lower concentration" without the presence of any membrane. The movement of the solute particles (‘molecules’, ‘atoms’ or ‘ions’) is free and unhindered.

The potassium per magnet crystals spread out to regions where it’s only pure water and no solute particle of it.

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