CHEM 1A Lecture Notes - Lecture 10: London Dispersion Force, Neopentane, Intermolecular Force
Document Summary
Ions are attracted by or repelled from other ions depending on their charge. Attractions between all uncharged molecules depend on partial charges and intermolecular distances. The magnitude of a partial charge in a molecule depends on bond polarity due to diferences in electronegativity, formal charges, overall shape of the molecule, size, and structure. It is useful to categorize intermolecular interactions into three groups: (1) dipole dipole, (2) induced dipole induced dipole, and (3) hydrogen-bonding. These interactions differ in strength and in the distance over which they are effective. The normal boiling point, the temperature at which bubbles of vapor are generated within the whole volume of a liquid at atmospheric pressure of. 1 atm depends on the magnitude of the attractive interactions between molecules. Identify specific types of intermolecular forces of atraction between various types of molecules: predict the relative strength of these interactions for a specific set of molecules.
