Correct Answer:
Option C - Diffusion in gases occurs in extreme intensity because there is negligible attractive force between the molecules of gases. Molecules in other two states, i.e. in solid and liquids attract each with much greater force therefore molecules are not free enough to diffuse intensively in these two other states of matter.
C. Diffusion in gases occurs in extreme intensity because there is negligible attractive force between the molecules of gases. Molecules in other two states, i.e. in solid and liquids attract each with much greater force therefore molecules are not free enough to diffuse intensively in these two other states of matter.