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Differences in boiling points

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Rationalize the difference in boiling point between the members of the following pairs of substances:
HF(20oC) and HCl (-85oC)
CHCl3 (61oC) and CHBr3 (150oC)
Br2 (59oC) and ICl (97oC)

Please provide detailed explanation.

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Solution Summary

Role of intermolecular forces and structures is used to explain differences in boiling points.

Solution Preview

HF has hydrogen bonding which is a very strong intermolecular force that is absent in HCl. The stronger the intermolecular forces, the more energy required to break them. This ...

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