Which of the following two substances is expected to have a higher viscosity?

n-octane or 2,2,4-trimethylpentane

Identify the intermolecular interaction/force that each of the following compounds would have among its molecules, atoms, or formal units:

BaSO₄, H₂S, KBr, Xe, ClF, I₂

Using the knowledge of the relevant strengths of these forces, rank these compounds in increasing order of their boiling points.

Arrange the following compounds in order of decreasing surface tension: CH₃CH₂CH₂CH₃, CH₃CH₂CH₂CH₂OH, and CH₃CH₂CH₂CH₂Cl.

Identify which CH₃CH₂NHCH₂CH₃ and CH₃NHCH₃ have the higher vapor pressure.

Which statement describes why HBr has a higher melting point than HCl but a lower melting point than HF?

HBr -88.5 °C 

HCl -114.8 °C 

HF -83.1 °C

Arrange the following hydrocarbons in order of increasing boiling point.

Butane, Ethane, Hexane, Octane

Identify which of the following compounds is most likely to have the highest enthalpy of vaporization