Why does #HBr# have a higher boiling point than #HCl#?

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Why does #HBr# have a higher boiling point than #HCl#?

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Answer 1 · 2016-07-04T04:57:32

As a physical scientist, you really should quote these boiling points, these physical data.

Explanation:

#HBr# is a larger, more polarizable molecule than #HCl#. There should be a greater degree of dispersion forces, forces between molecules, operating in the #HBr# molecule, and thus the higher boiling point is observed.

Hang on, the boiling point of #HF=19.5 ""^@C#, higher than those of #HCl# and #HBr#. Doesn't this blow my proposal out of the water?

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Why does #HBr# have a higher boiling point than #HCl#?

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