(i) What is meant by 'diffusion'? Give one example of diffusion in gases.
(ii) Why do gases diffuse very fast?
​(iii) Name two gases of air which dissolve in water by diffusion. What is the importance of this process in nature?
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Explanation:
Diffusion is net movement of anything from a region of higher concentration to a region of lower concentration. Diffusion is driven by a gradient in concentration.
Cigarette smoke diffuses into the air. These are some common examples of diffusion of gases
Gases have large intermolecular spaces and less force of attraction between their particles,because they have large amount of kinetic energy,so that particles move randomly. so molecules of gas move faster hence making diffusion rate more faster.
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