Question

Among solids, liquids, and gases, the thermal expansion on heating is ______.

Options

• Maximum in solids, minimum in gases

• Equal in all three states

• Maximum in gases, minimum in solids

• Maximum in liquids, minimum in gases

Answer 1

Among solids, liquids, and gases, the thermal expansion on heating is maximum in gases, minimum in solids.

Explanation:

"Expansion is more in liquids than in solids; gases expand even more." This is because intermolecular forces are weakest in gases, allowing molecules to move apart the most.