Question

Give one example of the diffusion of a solid in another solid and Explain why, the diffusion of a solid in another solid is a very slow process.

Answer 1

The diffusion of chalk in the surface of black board is an example of diffusion of solid in another solid. When we write something on a black board with a chalk and left it for sometime without erasing it. Then, we will find difficult to clean the board because the chalk particles get diffused to the surface of the black-board.

Now, we know that the particles of a solid are closely packed and cannot show movements. Due to this the particles of a solid take a long time to move from their respective place. Thus, diffusion of a solid in another solid is a very slow process.





__________________________

Hope it helped you!!
Please do select as brainliest!!