A) faster in solids than in liquids and gases
B) faster in liquids than in solids and gases
C) equal to solids, liquids and gases
D) faster in gases than in liquids and solids.
Correct Answer: D
Solution :
: Rate of diffusion,\[r\propto \sqrt{\rho }\]where p is the density. As density is least of gases than solids and liquids, hence rate of diffusion of gases is faster than in liquids and solids.
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