1. I. Intermolecular Forces
Liquids & Solids
I. Intermolecular Forces

2. A. Definition of IMF Much weaker than chemical bonds within molecules.
Attractive forces between molecules.
Much weaker than chemical bonds within molecules.
a.k.a. van der Waals forces

3. B. Types of IMF
C. Johannesson

4. B. Types of IMF
London Dispersion Forces
View animation online.

5. B. Types of IMF
Dipole-Dipole Forces + -
View animation online.

6. B. Types of IMF
Hydrogen Bonding

7. C. Determining IMF NH3 polar = dispersion, dipole-dipole CH4
nonpolar = dispersion HF
H-F bond = dispersion, dipole-dipole, hydrogen bonding