Intermolecular Forces (Section)Which type of intermolecular force accounts for each of the...

Intermolecular Forces (Section)

Which type of intermolecular force accounts for each of these differences? (a) CH3OH boils at 65 °C; CH3SH boils at 6 °C. (b) Xe is a liquid at atmospheric pressure and 120 K, whereas Ar is a gas under the same conditions. (c) Kr, atomic weight 84, boils at 120.9 K, whereas Cl2, molecular weight about 71, boils at 238 K. (d) Acetone boils at 56 °C, whereas 2-methylpropane boils at –12 °C.