Chapter 12 Quiz

Chem 20                             D. Oliver

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  1. Boyle's Law is a temperature pressure relationship where the pressure is directly proportional to the kelvin temperature.

    2. Your answer:
    True False

  2. In an ideal gas, the gas particles (atoms or molecules) have no volume, are point masses, and have no interaction with one another.

    3. Your answer:
    True False

  3. The ideal gas equation can be used to approximate the behavior of real gasses at low temperature and high pressure.

    4. Your answer:
    True False

  4. When the pressure of a gas is doubled and its celsius temperature is doubled, its volume will remain unchanged.

    5. Your answer:
    True False

  5. 22.4 liters of gas at 25.0 degrees celsius and 1.00 atmosphere contains more than one mole of gas. (No calculation needed.)

    6. Your answer:
    True False

  6. Pressure is caused by molecular and/or atomic __________ with surfaces.

    7. Your answer:

  7. A graph of volume (L) vs temperature (°C) for an ideal gas will pass through __________ °C when the volume is zero.

    8. Your answer:

  8. The pressure that a liquid exerts on its surroundings is called the __________ __________.

    9. Your answer:

  9. Can liquid water go from liquid to gas at 20 °C and 1 atmosphere pressure? (yes or no)

    10. Your answer:

  10. 22.4 moles of gas at S.T.P. will occupy ______ liter(s). Enter the numeric answer to three significant figures.

    11. Your answer:

  11. What is the volume of .250 moles of argon gas at 700 torr and 25 °C?

    12. Your answer:
    6.64 liters
    6.11 liters
    5.60 liters
    1.16 liters
    .00873 liters

  12. Nitrogen gas reacts with hydrogen gas to yield ammonia (NH3) gas. 1 liter of hydrogen at S.T.P. will require ______ liter(s) of nitrogen to completely react.

    13. Your answer:
    1/2
    1/3
    3
    2
    1

  13. 5.00 g of aluminum completely reacts with excess hydrochloric acid and a gas is collected at 1400 torr and 333 °C. What volume of gas is collected?

    14. Your answer:
    3.52 liters
    4.46 liters
    7.51 liters
    6.15 liters.
    1.27 liters

  14. A closed vessel contains dry air at 760 torr and 20 °C. Water is added very slowly (drop wise) to the container until the air is saturated with water. (I.e. Any additional water does not evaporate.) What is the final pressure in the vessel?

    15. Your answer:
    766 torr
    806.5 torr
    777.5 torr
    760 torr
    742.5 torr

  15. 3.00 liters of oxygen at 25.0°C and 1.00 atm is in a cylinder containing a piston. The volume is increased to 5.00 liters and the pressure is decreased to 600 torr. What is the new temperature of the system?

    16. Your answer:
    392 °C
    629 °C
    32.9 °C
    119 °C
    141 °C

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