Iodine solid sublime to iodine gas. What happens in terms of intermolecular forces as this process occurs?

First of all, the process of sublimation is the direct change from solid state to gaseous. Iodine molecules have a desperation force between them which is the weakest of the bonds. Therefore, when subjected to heat until the temperature reaches boiling point, the bond will break easily and without passing through liquid state, the iodine solid will sublime into iodine gas .