The boiling point of hydrogen halides varies | vedclass

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Question

(A) The boiling point of hydrogen halides is determined by the strength of intermolecular forces. In $HF$,strong hydrogen bonding exists between molec

Vedclass · Accepted Answer

$HF > HI > HBr > HCl$

Vedclass · Answer

(A) The boiling point of hydrogen halides is determined by the strength of intermolecular forces. In $HF$,strong hydrogen bonding exists between molecules,which significantly increases its boiling point. For the remaining hydrogen halides ($HCl$,$HBr$,$HI$),the boiling point is primarily determined by van der Waals forces,which increase with the increase in molecular size and molar mass. Thus,the order of boiling points is $HI > HBr > HCl$. Combining these,the overall order is $HF > HI > HBr > HCl$.

The boiling point of hydrogen halides varies in the order:

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