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AP Chemistry Intermolecular Forces, Liquids and Solids — practice questions

Explore 21 free Intermolecular Forces, Liquids and Solids questions in AP Chemistry Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

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Intermolecular Forces, Liquids and Solids questions and exercises with answers

Showing questions 1–21 of 21.

All attractive forces between neutral atoms and molecules are known collectively as:Read the answer and worked solution →The dispersion force present in every condensed phase is named after:Read the answer and worked solution →Which phase a substance is in depends on the balance between its intermolecular forces and its molecules':Read the answer and worked solution →The ease with which a nearby charge can distort a molecule's electron cloud is called its:Read the answer and worked solution →A polar molecule such as carbon monoxide experiences which extra force that nitrogen does not?Read the answer and worked solution →In the sequence CH4, SiH4, GeH4, SnH4, which has the highest boiling point?Read the answer and worked solution →Ordering ethane, propane and butane from lowest to highest boiling point gives:Read the answer and worked solution →Among the isomers of C5H12, which has the weakest dispersion forces?Read the answer and worked solution →The more compact shape of isopentane weakens its dispersion forces because it offers:Read the answer and worked solution →Geckos can climb smooth surfaces because of:Read the answer and worked solution →In a hydrogen chloride molecule, the partial negative charge sits on the:Read the answer and worked solution →Breaking the covalent bonds in one mole of hydrogen chloride takes about how much more energy than overcoming its intermolecular forces?Read the answer and worked solution →Iodine monochloride and bromine have similar masses of about 160 amu, so they experience:Read the answer and worked solution →A solid forms from a liquid when the molecules no longer have enough kinetic energy to overcome:Read the answer and worked solution →Dispersion forces become significant only when molecules are:Read the answer and worked solution →Dispersion forces are present in condensed phases:Read the answer and worked solution →Which boils at the higher point?Read the answer and worked solution →Inside a molecule or between?Read the answer and worked solution →True or false: intermolecular forcesRead the answer and worked solution →Match each term to its meaningRead the answer and worked solution →Complete the dispersion ruleRead the answer and worked solution →

Worked practice questions

All attractive forces between neutral atoms and molecules are known collectively as:

  1. Van der Waals forces
  2. Covalent bonding forces
  3. Ionic lattice forces
  4. Nuclear binding forces
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Correct answer: A. Van der Waals forces

1. Forces inside a molecule and forces between molecules are different things. 2. All of the attractive forces between neutral atoms and molecules are known as van der Waals forces. 3. They are usually referred to more informally as intermolecular attraction. 4. Covalent and ionic bonding act within a molecule or lattice, not between neutral particles. _Source: OpenStax Chemistry 2e (CC BY 4.0), Ch 10 'Liquids and Solids', sections 10.1-10.6_

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The dispersion force present in every condensed phase is named after:

  1. Peter J W Debye
  2. Fritz London
  3. Johannes Diderik
  4. Linus C Pauling
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Correct answer: B. Fritz London

1. One of the three van der Waals forces is present in all condensed phases. 2. It appears regardless of the nature of the atoms or molecules composing the substance. 3. This attractive force is called the London dispersion force in honour of German-born American physicist Fritz London. 4. He first explained it in 1928. _Source: OpenStax Chemistry 2e (CC BY 4.0), Ch 10 'Liquids and Solids', sections 10.1-10.6_

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Which phase a substance is in depends on the balance between its intermolecular forces and its molecules':

  1. Isotope masses
  2. Oxidation numbers
  3. Kinetic energies
  4. Nuclear charges
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Correct answer: C. Kinetic energies

1. Intermolecular forces hold particles close together. 2. The particles' kinetic energy provides the energy required to overcome those forces and increase the distance between particles. 3. The phase in which a substance exists depends on the relative extents of its intermolecular forces and the kinetic energies of its molecules. 4. Cooling or compressing tips that balance toward the solid. _Source: OpenStax Chemistry 2e (CC BY 4.0), Ch 10 'Liquids and Solids', sections 10.1-10.6_

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More Chemistry topics

Composition of Substances and SolutionsEquilibria of Other Reaction ClassesSolutions and ColloidsStoichiometry of Chemical ReactionsThermodynamicsAcid-Base EquilibriaAtoms, Molecules, and IonsChemical Bonding and Molecular Geometry