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Boiling Point and Structure

APCHEM-RJT8PS

The boiling point of hexane, ${C}_{6}{H}_{14}$, is higher than that of butane, ${C}_{4}{H}_{10}$.

Which of the following is the BEST explanation for this observation?

A

There are more bonds to be broken in hexane than there are in butane.

B

Hexane is a liquid, while butane is a gas under standard conditions. Liquids always have higher boiling points than gases.

C

Hexane molecules are larger and have more electrons than molecules of butane.

D

Hexane has a higher vapor pressure than butane at any given temperature.