Ammonia, NH₃, boils at a higher temperature than phosphine, PH₃. This is probably due to A) ammonia being more dense than PH₃. B) ammonia having the lower formula mass. C) hydrogen bonding among the NH₃ molecules. D) ammonia being ionic and phosphine being covalent.

Question

Quizplus · Accepted Answer

Ammonia (NH3) has hydrogen bonds due to the high electronegativity difference between nitrogen and hydrogen, which leads to stronger intermolecular forces and a higher boiling point compared to phosphine (PH3), which lacks hydrogen bonding.

Ammonia, NH3, Boils at a Higher Temperature Than Phosphine, PH3

Ammonia, NH₃, Boils at a Higher Temperature Than Phosphine, PH₃