Question #b70ed

1 Answer
Jun 14, 2017

Yes, solid can diffuse into solid.

Explanation:

The particles in solids have thermal kinetic energy, which causes them to vibrate and eventually diffuse into each other.

However, the process is very slow, because the particles in a solid are closely packed dogether.

Some examples of solid-solid diffusion are

  • Pure gold and pure lead will diffuse into each other.

  • Chalk marks on a blackboard eventually become permanent.

  • Two pieces of chalk wrapped tightly together will fuse together after a few years.