Which of the following statements is correct regarding diffusion?

Question

a) The rate of diffusion is independent of temperature.

b) The lower the temperature, the faster the diffusion rate.

c) Molecular weight of a substance does not affect the rate of diffusion.

d) The greater the concentration of gradient, the faster the rate of diffusion.

Answer 1

D is correctb

Answer 2

it is a process resulting from random motion of molecules by which there is a net flow of matter from a region of high concentration to a region of low concentration.