Question

Intermolecular forces decrease on heating because kinetic energy __________ and space between particles ____________.

Answer 1

Effect of temperature in intermolecular force and space:

• The intermolecular forces are the attractions between the molecules when temperature increases it develops more distance between molecules and because of this attraction decreases, resulting intermolecular force decreases.
• It decreases on heating as the particles gain energy and start vibrating.
• The intermolecular space between particles increases and they overcome the intermolecular forces.

Hence, the intermolecular forces decrease on heating because kinetic energy increases and space between particles increases.