Which Substance Below Has the Strongest Intermolecular Forces

Multiple Choice

Which substance below has the strongest intermolecular forces?

A) A₂X, ΔH_vap= 39.6 kJ/mol
B) BY₂, ΔH_vap= 26.7 kJ/mol
C) C₃X₂, ΔH_vap= 32.5 kJ/mol
D) DX₂, ΔH_vap= 23.3 kJ/mol
E) EY₃, ΔH_vap= 21.6 kJ/mol