Multiple Choice
Which of the following statements is true regarding the relationship between intermolecular forces and boiling point?
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13. Liquids, Solids & Intermolecular Forces
Intermolecular Forces and Physical Properties
Multiple Choice
Which of the following factors contributes to a low viscosity of a liquid?
A
Large, complex molecular structure
B
Weak intermolecular forces
C
Strong hydrogen bonding
D
High molecular mass
Verified step by step guidance1
Understand that viscosity is a measure of a liquid's resistance to flow; higher viscosity means the liquid flows more slowly.
Recognize that intermolecular forces play a key role in viscosity: stronger intermolecular forces cause molecules to stick together more, increasing viscosity.
Analyze the options: large, complex molecular structures and high molecular mass generally increase viscosity because bigger molecules tend to entangle or have stronger interactions.
Strong hydrogen bonding is a type of strong intermolecular force, which also increases viscosity by holding molecules tightly together.
Therefore, weak intermolecular forces reduce the attraction between molecules, allowing them to move past each other more easily, resulting in lower viscosity.
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