Question

Diffusion occurs in
(a) Solids
(b) Liquids
(c) Gases

• A. a,b
• B. b,c
• C. a,c
• D. All

Answer 1

The correct option is B b,c

Diffusion occurs in both liquids and gases and can take place over long distances diffusion in gases are much faster than in liquids the diffusion rate of oxygen in the air is 1,00,0001,00,000 times more than diffusion rate of oxygen in the water. Diffusion may be defined as the process of movement of gases. Liquids or solutes from the region of higher concentration to the regions of lower concentration till the molecules are uniformly distributed throughout the available space. Many substances like gases. liquids or solutes can diffuse simultaneously in different directions and at different rates in the same place without interfering with each other.

So, the correct answer is B.