Apentix/AP Chemistry/Unit 3: Intermolecular Forces and Properties/Question

AP Chemistrymediummcq1 pt

Which liquid has the lowest vapor pressure at a given temperature?

A.The one with the strongest intermolecular forces

B.The one with the weakest intermolecular forces

C.The one with the lowest molar mass

D.The one with the largest surface area

Explanation

Core Concept

Vapor pressure reflects how easily molecules escape the liquid. Strong IMFs hold molecules in the liquid phase, so fewer enter the vapor — low vapor pressure, high boiling point.

Correct Answer

AThe one with the strongest intermolecular forces

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