Question

Compare the rate of diffusion of liquid and solids with reason

Answer 1

Answer: explained

Explanation:

Diffusion is the movement of molecules from the area of higher to lower concentration. Rate of diffusion in greater in liquids is greater than in solids because molecules of liquids, unlike solids, are not tightly packed. ... They have more inter-molecular spaces among them as compared to solids, so they mix up quickly.

Answer 2

Answer:

The rate of diffusion of liquids is more than that of solids.

Explanation:

Diffusion refers to the movement of molecules across the concentration gradient. In that sense, rate of diffusion is naturally more in those substances in which molecules are loosely packed, so that the diffusing molecules move more easily and quickly. Loose molecular packing also means that the adhesive force to the diffusing molecules(which restricts their movement) is also less. As liquids have loose molecular packing, rate of diffusion is generally high in liquids than in solids.

• This is endorsed by Graham's law of diffusion which states that:-
• Rate of diffusion(D) is inversely proportional to the square root of the density(d) of the medium,

$\:\:\:\:\:\:\:\:D\propto \frac{1}{\sqrt{d}}$

• Since solids are generally denser than liquids, rate of diffusion is more in liquids.