|  |  |  |  |  |  |  |  |  |  | 
   
    | • | In general ionic
    forces the strongest, then 
 |  | 
   
    |  | hydrogen
    bonding, dipole-dipole and lastly 
 | 
   
    |  | dispersion for
    species of similar molar 
 |  | 
   
    |  | mass. 
 |  | 
   
    |  | 
   
    | • | N2
    (bpt -195oC)    O2
    (bpt -183oC) 
 |  | 
   
    |  |  | 
   
    | • | N2
    (bpt -195oC)    CO (bpt
    -190oC) 
 |  | 
   
    |  |  | 
   
    |  | H2O (bpt 100oC) 
 |  | 
   
    |  | 
   
    | • | CH3F
    (-141.8oC)   CCl4
    (-23oC) 
 |  | 
   
    |  |  | 
   
    |  | 
   
    | • | NaCl
    (801oC mp) 
 |  | 
   
    |  |  |