Question

From iron, hydrogen peroxide and carbon dioxide when same amount of heat is supplied to these three substances, which expand most?

Answer 1

Gases expand the most upon heating because of the large intermolecular distances and less intermolecular force. Carbon dioxide being a gas will expand the most . hydrogen peroxide is liquid at room temperature and iron is solid.

so carbon dioxide expands the most.

HOPE IT HELPS... ^_^^_^