Question

4. (a) What do you mean by a gas?

Answer 1

• A gas is an air-like substance that expands to fill its surroundings.
• Gas is a state of matter that does not have a definite shape or volume.
• Particles in gases are separated by a large distance.
• Because the force of attraction between the particles is low, they are free to move around.
• Examples of gases are Carbon dioxide$\left({\mathrm{CO}}_2\right)$, Neon$\left(\mathrm{Ne}\right)$.