What are signs of strong intermolecular forces of attraction in a liquid High va

Question

What are signs of strong intermolecular forces of attraction in a liquid High vapor pressure Low vapor pressure High molar heat of evaporation Low molar heat of fusion Low surface tension Which compounds display hydrogen bonds forces of attraction in neat form CH_3NH_2 NH_3 HF HCl H_2O CH_3CH_2OH CH_3OCH_3 (CH_3)_3N Which of the following responses arranges interactions in order of increasing strength? ("permanent" is used to indicate non-H-bonding permanent dipole-permanent dipole interactions). London forces, hydrogen bonds, permanent dipole-dipole interactions London

Explanation / Answer

26. If the intermolecular force of attraction between the molecules is very strong, then the molecules will be strongly bound. As a result , it would require large amount of energy to evaporate it, resulting a high molar heat of vaporization.

Also , very small number of molecule will be in the vapor phase in liquid <=> vapor equilibrium. Vapor pressure will be low.

Correct answer :b and C

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