Question

Explain why solid do not undergo diffusion whereas liquid and gas undergo diffusion readly

Answer 1

Solid Have A Rough Body .For Example We Will Keep A Sold Item.Take A Stone And Push It Into A Pipe Will It Go ? Because Liquid Can Flow Inside A Small Hole But Solid Couldn't Go

Answer 2

Particles of liquids and gases move freely as there is lot of space and the kinetic energy is more. But particles of solids are packed together with very little space and less kinetic energy compared to gases and liquids.