Types of Diffusion

Introduction to types of diffusion:
Conclusive evidence that molecules are in constant motion is provided by the phenomenon of diffusion.

It is a process by which the molecules of one kind penetrate through the spaces between the molecules of another kind.

It is a process of leveling out of the densities of two substances when they are mixed with each other . the mutual penetration of the substance is a result of the random motion of their particles along a certain direction. It is exactly in this direction that diffusion occurs.

Diffusion is observed in solids, liquids and gases.

Understanding University Physics with Modern Physics is always challenging for me but thanks to all science help websites to help me out.

Types of Diffusion


There are three types of diffusion they are,

Diffusion in solids

Diffusion in liquids

Diffusion in gases


Explanation to diffusion in solids, liquids and gases


Diffusion in Solids: A lead plate and a gold plate are pressed together for several months. They are found to inter growth that is their atoms begin to penetrate into the other sheet. In five years time, the atoms can penetrate up to a depth of about one millimeter.

Diffusion in liquids: Place some hydrated crystals of copper sulphate at the bottom of the tall jar containing water. Leave the jar undistributed so that the water in it remains still. After some time, a dense blue color has extended uniformly throughout the liquid.

The same phenomenon can also be observed if we carefully pour water into a vessel which contains a uniform solution of copper sulphate.Having problem with Pressure Formula keep reading my upcoming posts, i will try to help you.

Diffusion in gases: Gases have a natural tendency of mixing with one another. if you open a jar of chlorine or ammonia in a large room the presence of the gases can be detected within a few seconds because of its powerful color is heavier than air it does not remain at the floor level.

This can be explained in the terms of the molecular behavior. The molecules of the gas coming out of the jar collide with the air molecules and start moving randomly in all the possible directions.