Practice question · Put in order
Arrange these intermolecular forces from weakest to strongest.
- Ionic attraction within a crystal lattice
- Hydrogen bonding involving O-H
- London dispersion between small nonpolar molecules
- Dipole-dipole between polar molecules
Hints
- Start with the force present in every substance but weakest in small molecules.
- Ionic attraction is a full electrostatic bond, stronger than any intermolecular force.
Show the answer
- London dispersion between small nonpolar molecules
- Dipole-dipole between polar molecules
- Hydrogen bonding involving O-H
- Ionic attraction within a crystal lattice
Why
London forces are weakest in small molecules, permanent dipoles are stronger, hydrogen bonding is the strongest intermolecular force, and full ionic attraction between charges exceeds all of them.
Practise Gases, Kinetic Theory and Intermolecular Forces
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