.

Besides, what does Fick's law state?

Fick's law states that the rate of transfer of molecules or atoms by diffusion through a unit area is proportional to concentration gradient.

Furthermore, how does the size and nature of diffusing molecules affect the rate of diffusion? the more the concentration gradient the higher the driving force of the process and hence the higher the rate of diffusion. the more the size of the molecule the higher the inertia it has so the less the rate of diffusion.

Thereof, what does Fick's first law mean?

Fick's first law J is the diffusion flux, of which the dimension is amount of substance per unit area per unit time. J measures the amount of substance that will flow through a unit area during a unit time interval. D is the diffusion coefficient or diffusivity. x is position, the dimension of which is length.

What is the formula for diffusion?

Graham's Law Formula Graham's law states that the rate of diffusion or effusion of a gas is inversely proportional to the square root of its molar mass. See this law in equation form below. In these equations, r = rate of diffusion or effusion and M = molar mass.