Question

Why do liquids expand more than solids on heating?​

Answer 1

Heat causes the molecules to move faster, (heat energy is converted to kinetic energy ) which means that the volume of a gas increases more than the volume of a solid or liquid. However, gases that are contained in a fixed volume cannot expand - and so increases in temperature result in increases in pressure.

Answer 2

because it have more intermolecular space between atom than solid have and also low inter molecular force