This preview shows pages 1–2. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: o only effective when polar molecules very close together o increasing polarity >> increasing intermolecular attractions o smaller molecules >> increasing attraction • London dispersion force- instantaneous dipole moment o found between nonpolar and polar molecules o due to temporary dipole moments at particular moments • polarizability- how easily an electric field can change the molecule’s charge distribution o increasing molecular weight >> increasing strength of dispersion forces o most massive/polar molecules have largest attraction forces • hydrogen bonding force- intermolecular attraction between hydrogen atom in polar bond and unshared electron pair on another molecule o generally stronger than dipole-dipole/dispersion forces o hydrogen’s small size lets it get close to electronegative atom o equal amounts of water take up more volume as solid than as liquid (usually reversed for other substances)...
View Full Document