[cobi7]

I really have no idea how to answer this question, can someone please explain the answer in as much detail as they can. Any input will be extremely appreciated.

Rank the molecules in order of increasing boiling point, each rank must be justified:
C3H7OH C3H8 C3H7Br C32H66

[ooosh]

These compounds are all organic molecular compounds,bp of these compounds of this type relates to their molecular weight.
The bigger its MW. the higher its bp. ,but the alcohol which bears a hydroxyl has intramolecular hydrogen bond,so bp of alcohol is higher than hydrocarbon with the same C atom number.

[Noff]

Lookup the boiling points on SigmaAldrich.com or Chemspider.com and use the logic outlined in the earlier post to rank them.