Which concept best explains that o - n i t r o p h e n o l is more volatile than p - n i t r o p h e n o l

Step-by-step solution

o - n i t r o p h e n o l has intramolecular hydrogen bonding but p - n i t r o p h e n o l has intermolecular hydrogen bonding so boiling point of p - n i t r o p h e n o l is more than o - n i t r o p h e n o l .