Question

a teacher placed a small amount of liquid bromine in the bottom of a sealed glass jar. after two minutes, brown fumes were seen just above the liquid surface. after one hour the brown colour had spread completely throughout the gas jar

Answer 1

Explanation:

Diffusion is the name of this phenomena, it happens in liquids and solids ( Atomic diffusion ) as well although in solids it is a very slow process.In liquids it is quicker, imagine putting a drop of dye into a bowl of clear water, after a while all the water will be colored.