Question

Gas particles diffuse quickly because:

• A. they have more space between them.
• B. they have definite shape.
• C. they are continuously moving.
• D. they have a fixed volume.

Answer 1

Answer: (A), (C)

The correct options are
A they have more space between them.
C they are continuously moving.

Diffusion is the movement of particles from an area of high concentration to an area of low concentration.
Gases do not have a fixed shape and volume. Particles in gases have large space and low force of attraction between them. So they are in random motion. This leads to the diffusion of gases quickly.