Diffusion is a mass transfer that occurs due to the concentration gradient that exists. Examples that exist in our daily lives are:
A perfume difussing into the air which you smell eventually.
Teabag placed in a cup of water
A drop of food coloring in water.
Stirring sugar in drinks.
Smoke diffusing into air.
Carbon dioxide in a soda can.
Water diffusing into plants.
Oxygen produced from plants diffuse into air
Food diffuse into the colon
oxygen diffuses from blood cells to the muscles.
Computers making its way to the world.
Migration from one place to the another.
Ocean currents diffuse warm water from the tropics to the equator.
