3.4 - Intermolecular Forces (IMFs): Attractions Between Molecules

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

Define intermolecular forces in one sentence.

πŸ’‘ Hint: Think about the forces existing between molecules as opposed to inside them.

Question 2

Easy

What is an example of a substance exhibiting dipole-dipole forces?

πŸ’‘ Hint: Recall polar molecules where positive and negative ends attract.

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Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the strongest type of intermolecular force?

  • A) London Dispersion Forces
  • B) Dipole-Dipole Forces
  • C) Hydrogen Bonding

πŸ’‘ Hint: Think about which forces involve hydrogen with highly electronegative elements.

Question 2

True or False: London dispersion forces are present in all molecules.

  • True
  • False

πŸ’‘ Hint: Consider if all molecules have some form of electron cloud.

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Challenge Problems

Push your limits with challenges.

Question 1

Describe a situation where you would compare the boiling points of two substances, one with strong hydrogen bonds and another with only London dispersion forces. What factors would you consider?

πŸ’‘ Hint: Think about why we need heat to change states.

Question 2

A liquid has a lower viscosity than another; deduce which intermolecular forces might be weaker in the less viscous liquid and explain.

πŸ’‘ Hint: Consider how viscosity relates to the movement of molecules.

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