Learning objectives
Identify the intermolecular forces present in a substance — London dispersion, dipole–dipole, hydrogen bonding and ion–dipole — and rank their relative strengths for given particles
Explain how London dispersion forces arise from instantaneous induced dipoles and why they strengthen with increasing polarisability and molar mass
Explain differences in boiling point, vapor pressure, viscosity, surface tension and enthalpy of vaporization between substances using the intermolecular forces present, not the strength of covalent bonds
Interpret a heating curve and a phase diagram, and explain why temperature stays constant during a phase change while intermolecular forces are overcome
Justify a claim about the relative strength of intermolecular forces in two substances using experimental evidence such as vapor pressure or boiling point data
Continue with a revision plan
These learning objectives are available to everyone. Sign in with an eligible plan to read the full note and worked examples.