Question

Gases expand more than solids.

• A. True
• B. False

Answer 1

The correct option is A True

1. As we know kinetic energy (energy possessed by virtue of motion) is directly proportional to the temperature.
2. When a matter (solid, liquid, or gas) is heated kinetic energy of its molecule increases which results in an increase in intermolecular space therefore the matter expands.
3. On the other hand, a decrease in temperature decreases the kinetic energy of molecules, as a result, intermolecular space decreases, and matter contracts.
4. In the case of gases, the intermolecular space between molecules is more which results in less intermolecular attraction as compared to solid or liquid therefore on heating gases undergo rapid expansion.
5. Hence the given statement is true.