Question

Which of the two diffuses slower : nitrogen dioxide into air or copper sulphate into water

Answer 1

Answer:

The process of diffusion of copper sulphate in water is slower as compared to the diffusion of nitrogen oxide into the air. This is because the water which contains molecules are closely packed as compared to that of the gaseous molecules.

Diffusion is the process in which a substance gets transported from a region where it is present in high concentration to a place where it is present in low concentration.

It is similar to the process of osmosis in which the molecules present in a solvent  move to the region of low concentration via a semipermeable membrane.