Chemistry Practice Problems Intermolecular Forces and Physical Properties Practice Problems Solution: Which substance has the lowest vapor pressure at r...

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Solution: Which substance has the lowest vapor pressure at room temperature?a. HFb. HClc. HBrd. Hle. H2 

Problem

Which substance has the lowest vapor pressure at room temperature?

a. HF

b. HCl

c. HBr

d. Hl

e. H


Solution
  • Vapor pressure is a colligative property which is connected to Intermolecular forces
  • The higher the IMF, the lower the vapor pressure
  • We are looking for the molecule with the strongest IMF
  • Analyzing the choices:
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