Final answer:
The anomaly of fluorine's bond dissociation enthalpy is due to its ability to form hydrogen bonds and its high electronegativity. These factors contribute to the high boiling point of hydrogen fluoride compared to other halogens.
Step-by-step explanation:
The effect of the anomaly of fluorine's bond dissociation enthalpy is related to the high electronegativity and small size of fluorine atoms compared to other halogens. Fluorine is capable of doing hydrogen bonding due to its strong attraction force caused by the high concentration of lone pairs of electrons. This results in a highly polarized H-F bond in hydrogen fluoride and stronger intermolecular forces, leading to a higher boiling point compared to other hydrogen halides.