Hydrogen fluoride (HF) and hydrogen chloride (HCl) are both group 7 hydrides, but HF has a boiling point of 19°C and HCI boils at the considerably lower temperature of -85°C. In terms of the intermolecular forces present, explain the significant difference in the boiling points of these two substances.

Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
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Chapter8: Molecules And Materials
Section: Chapter Questions
Problem 8.44PAE
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Hydrogen fluoride (HF) and hydrogen
chloride (HCI) are both group 7
hydrides, but HF has a boiling point of
19°C and HCl boils at the considerably
lower temperature of -85°C. In terms of
the intermolecular forces present,
explain the significant difference in the
boiling points of these two substances.
Transcribed Image Text:Hydrogen fluoride (HF) and hydrogen chloride (HCI) are both group 7 hydrides, but HF has a boiling point of 19°C and HCl boils at the considerably lower temperature of -85°C. In terms of the intermolecular forces present, explain the significant difference in the boiling points of these two substances.
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