Chemistry II Chapter 12 Intermolecular Forces

13 Questions | Total Attempts: 865

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Chemistry II Chapter 12 Intermolecular Forces

This quiz is to test your knowledge about Chapter 12. Chapter 12 covers information about states of matter, phase changes, and intermolecular forces.


Questions and Answers
  • 1. 
    • A. 

      The heat of vaporization

    • B. 

      The normal boiling temperature

    • C. 

      The extent of deviations from the ideal gas law

    • D. 

      The sublimation temperature of a solid

    • E. 

      The vapor pressure of a liquid

  • 2. 
    Order the intermoleuclar forces from weakest to strongest.
    • A. 

      Dipole-dipole, london dispersion, ionic, hydrogen bonding

    • B. 

      London dispersion, dipole-dipole, hydrogen bonding, ionic

    • C. 

      Hydrogen bonding, dipole-dipole, london dispersion, ionic

    • D. 

      Dipole-dipole, ionic, london dispersion, hydrogen bonding

    • E. 

      London dispersion, ionic, dipole-dipole, hydrogen bonding

  • 3. 
    Which of the following would you expect to have the highest boiling point?
    • A. 

      Fluorine

    • B. 

      Chlorine

    • C. 

      Bromine

    • D. 

      Iodine

    • E. 

      All would have the same boiling point

  • 4. 
    On a relative basis, the weaker the intermoleuclar forces in a substance,
    • A. 

      The greater its heat of vaporization

    • B. 

      The more it deviates from ideal gas behavior

    • C. 

      The greater its vapor pressure at a particular temperature

    • D. 

      The higher its melting point

    • E. 

      None of these

  • 5. 
    Water sits in an open beaker. Assuming contant temperature and pressure, the rate of evaporation decreases as the water evaporates.
    • A. 

      True

    • B. 

      False

  • 6. 
    At normal atmospheric pressure and a temperature of 0oC, which phase(s) of H2O can exist?
    • A. 

      Ice and water

    • B. 

      Ice and water vapor

    • C. 

      Water only

    • D. 

      Water vapor only

    • E. 

      Ice only

  • 7. 
    • A. 

      Only ice

    • B. 

      Ice and water

    • C. 

      Only water

    • D. 

      Water and water vapor

    • E. 

      Only water vapor

  • 8. 
    Which of the following processes must exist in equilibrium with the evaporation process when a measurement of vapor pressure is made?
    • A. 

      Fusion

    • B. 

      Vaporization

    • C. 

      Sublimation

    • D. 

      Boiling

    • E. 

      Condensation

  • 9. 
    • A. 

      Surface tension

    • B. 

      Cohesive forces

    • C. 

      Adhesive forces

    • D. 

      Viscosity

    • E. 

      Two of these

  • 10. 
    • A. 

      It has a low surface tension, and therefore clings to the glass

    • B. 

      The cohesive forces are stronger than the adhesive forces toward the glass

    • C. 

      The adhesive forces toward the glass are stronger than the cohesive forces

    • D. 

      The liquid's viscosity is low

    • E. 

      None of these

  • 11. 
    • A. 

      The partial pressure exerted by the vapor molecules is called teh vapor pressure of the liquid

    • B. 

      Liquid molecules are still evaporating

    • C. 

      The number of vapor molecules remains essentially constant

    • D. 

      The boundary between the liquid and vapor disappears

    • E. 

      All of these are true

  • 12. 
    A cetain substance, X, has a triple-point temperature of 20oC at a pressure of 2.0 atm.Which one of the statements can NOT be true?
    • A. 

      X can exist as a liquid above 20oC

    • B. 

      X can exist as a solid above 20oC

    • C. 

      Liquid X can exist as a stable phase at 25oC and 1 atm

    • D. 

      Both liquid and solid X have the same vapor pressure at 20oC

    • E. 

      All of these could be true

  • 13. 
    The vapor pressure of water is 1.0 atm at 373 K, and the enthalpy of vaporization is 40.7 kJ mol-1. Estimate the vapor pressure at temperature 363
    • A. 

      1.5 atm

    • B. 

      0.697 atm

    • C. 

      760 torr

    • D. 

      490 torr

    • E. 

      12.2 atm