Diffusion of gas into solid
Answers
Diffusion can take place in gases, liquids, or 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...
or the process of gas into solid...
Under certain circumstances, gas can transform directly into a solid. This process is called deposition.
The spreading out and mixing of a substance with another substance due to the motion of its particles is called diffusion.
Diffusion takes place with slowest rate in the case of solids. The rate of diffusion is almost negligible in solids.
Since the particles of solid have lowest kinetic energy so they do not move. Hence, diffusion takes a long time in the case of solid.
Example – Some time we observe that the marks of chalk on the black board could not be wiped out easily after a long time. This happens because of the diffusion of particles of chalks with the particles of black-board and marks of chalk could not be wiped out.
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