state some examples of diffusion in solid, gases, liquid
solid - If metallic gold and metallic lead are placed in intimate contact, over a period of time, molecules of lead will diffuse into the gold and vice versa. This has been known for a long period of time.
gases - Your nose is able to detect the smell of the cologne or perfume even if you are quite a distance from the bottle that has been opened.
liquid - a crystal of potassium permanganate in water, watch the colour spread (diffuse out) as the crystal dissolves.
Read more: Diffusion - examples, body, water, gas, carbon, air, cells, substance, surface, Osmosis http://www.scienceclarified.com/Di-El/Diffusion.html#b#ixzz1wtHlAb42