- Stronger intermolecular forces result in higher boiling point.
- Strength of London forces increases with the number of electrons in the molecule.
- Boiling point of HF,HCl,HBr and HI are 293 K,189 K,206 K and 238 K respectively.
A Which type of intermolecular forces are present in the molecules
HF,HCl,HBr and
HI?
B Looking at the trend of boiling points of
HCl,HBr and
HI, explain out of dipole-dipole interactions and London interaction, which one is predominant here.
C Why is the boiling point of hydrogen fluoride highest while that of hydrogen chloride lowest?