1. The problem statement, all variables and given/known data Arrange compunds in order of increasing boiling points and explain why. C2Br6,C2F6,C2I6,C2Cl6 2. Relevant equations 3. The attempt at a solution I have C2Cl6 < C2Br6 < C2I6 < C2F6 My explanation is as follows. C2F6 is highest because it has dipole dipole forces. Which are stronger then London forces. All the others just posse London forces. So I went by molar mass the heavier the more energy required to reach its boiling point ( to break the London dispersion force.) Please let me know if I think OK.