5) Explain the process of diffusion
In gases , in liquids, in solids
Answers
Answer:
The spreading out and mixing of a substance with another substance due to the motion of its particles is called diffusion. ... Diffusion occurs in gases, liquids and solids. Diffusion is fastest in gases and slowest in solids. The rate of diffusion increases on increasing the temperature of the diffusing substance.
Explanation:
Answer :
Diffusion in Gases : Gaseous atoms and molecules move freely and randomly through space. Diffusion is the process whereby gaseous atoms and molecules are transferred from regions of relatively high concentration to regions of relatively low concentration.
Diffusion in Liquids : Diffusion can also happen in liquids. This is because the particles in liquids can move around each other, which means that eventually they are evenly mixed. For example, potassium manganate(VII) is a purple solid. If you put a crystal of it into a jar of water, the purple colour spreads slowly through the water.
Diffusion in Solids : In solids, particularly, diffusion occurs due to thermally-activated random motion of atoms - unless the material is at absolute zero temperature (zero Kelvin), individual atoms keep vibrating and eventually move within the material.