Question

Superficial and volume thermal expansions occur in solids, liquids and gases.

• A. True
• B. False

Answer 1

The correct option is B False

1. Solids have a definite shape and definite volume due to their closely packed arrangement.
2. So, when solids are heated, they gain energy to move freely and expand.
3. The expansion can be there in length, area, and volume leading to linear, superficial, and volume thermal expansions respectively.
4. Liquids have a definite volume but no definite shape.
5. Gases take the volume of the container in which they are filled.
6. So, when liquids and gases are heated, the volume will increase leading to volume thermal expansion but no length and superficial expansion in liquids and gases.

Therefore, the given statement is false.