Question

A crystal of potassium permanganate is placed in a beaker of water. The purple colour of potassium permanganate gradually spreads throughout the water by diffusion Explain, using the kinetic particle theory, how this process occurs.
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Answer 1

When the crystals of potassium permanganate are preserved in water, the purple-coloured crystals of potassium permanganate break further into smaller particles that populate the distance between the molecules of water imparting a purple colour to the water. This is an example of diffusion.

What are the two conclusions given out in the method of diffusion?

Diffusion is the process of movement of solvent from higher concentration to lower concentration through a semipermeable membrane. So, we can form the decision that it cannot occur through a thick membrane from which small molecules cannot pass through.

What is difference between osmosis and diffusion?

Osmosis is the direction of solvent particles from a solution that is diluted to a more concentrated one. In contrast, diffusion is the movement of particles from a higher concentration region to a part of lower concentration.

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