Question

why do solids not diffuse with one another?

Answer 1

This is because the particles in liquids canmove around each other, which means that eventually they are evenly mixed. ... Diffusionin liquids is slower than diffusion in gases because the particles in a liquid move more slowly

Answer 2

I think because they are tightly packed as a result interpartical distance remains same at a given temperature

I hope it is clear to you

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