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Practice with IMFs & Phases (AP level)

Quiz by Natalie Wieland

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24 questions
Show answers
  • Q1
    Under what conditions does a gas behave more like a real gas than an ideal gas?
    low temperature & low pressure
    high temperature & low pressure
    high temperature & high pressure
    low temperature & high pressure
    120s
  • Q2
    What is the volume of 3.00mol of gas at STP?
    it cannot be determined without knowing which gas is involved.
    22.4 L
    3 x 22.4L
    3 x 22.4L x 273/760
    120s
  • Q3
    An ideal gas of volume 189mL is collected over water at 30 0C and 777torr. The vapor pressure of water is 32torr at 30 0C. What pressure is exerted by the dry gas under these conditions?
    320torr
    777torr
    745torr
    32/777torr
    120s
  • Q4
    A 14.0L cylinder contains 5.60g of N2, 40.0g Ar, adn 6.40g O2. What is the total pressure in atm at 27 0C? (R= ideal gas constant)
    60R
    26R
    120R
    30R
    120s
  • Q5
    In a closed rigid system, 7.0mol CO2, 7.0mol Ar, 7.0mol N2, and 4.0mol Ne are trapped, with a total pressure of 10.0atm. What is the partial pressure exerted by the neon gas?
    10.0atm
    4.0atm
    1.6atm
    21.0atm
    120s
  • Q6
    Cl2 & F2 combine to form a gaseous product; one volume of Cl2 reacts with three volumes of F2 yielding two volumes of product. Assuming constant conditions of temperature and pressure, what is the formula of the product?
    ClF3
    Cl2F2
    Cl2F
    ClF2
    120s
  • Q7
    Decreasing the temperature of an ideal gas from 80 0C to 40 0C causes the average kinetic energy to
    increase by a factor of four
    Decrease by less than a factor of two
    decrease by a factor of two
    increase by a factor of two
    120s
  • Q8
    The average speed of the molecules of a gas is proportional to the
    absolute temperature
    square root of the absolute temperature
    reciprocal of the absolute temperature (1/T)
    square of the absolute temperature
    120s
  • Q9
    A 5.00-L vessel contains 2.00moles of helium and 3.00moles of hydrogen at a pressure of 10.0atm. Maintaining a constant temperature, an additional 3.00moles of hydrogen are added. What is the partial pressure of hydrogen gas in the vessel at the end? (assume that the gases behave ideally).
    6.00 atm
    10.0 atm
    12.0 atm
    20.0atm
    120s
  • Q10
    Increasing the pressure on a gas in a rigid container at constant temperature will
    increase the influence of intermolecular attractions, because the molecules will be closer together
    increase the influence of intermolecular attractions, because the molecules will be moving more slowly
    increase the average kinetic energy of the gas molecules
    decrease the average kinetic energy of the gas molecules
    120s
  • Q11
    Consider two samples of gas in identical rigid containers. Sample A at 273K and Sample B at 300K. Which of the following statements are true?
    The samples have the same average velocity
    The pressure of Sample A is more than the pressure of Sample B
    The average kinetic energy of Sample A is less than that of Sample B
    The samples must contain the same number of moles of gas
    120s
  • Q12
    The vapor pressure increases in a predictable order as shown
    CH4 < C2H5-OH < C2H5-O-C2H5 < Ne
    C2H5-OH < C2H5-O-C2H5 < CH4 < Ne
    C2H5-O-C2H5 < C2H5-OH < Ne < CH4
    Ne < CH4 < C2H5-O-C2H5 < C2H5-OH
    120s
  • Q13
    The properties of solids vary with their bonding. An example of this is shown by
    ionic solids with highly mobile ions which have have conductance
    molecular solids with high IMFs which have high melting temps
    ionic solids with strong electrostatic attractions called ionic bonds, which have high melting temperatures
    amorphous solids with strong LDFs and high vapor pressure
    120s
  • Q14
    As you go down the noble gas family on the periodic table, the boiling temperature increases. This trend is due mainly to
    an increase in Hydrogen bonding
    an increase in London Dispersion Forces
    a decrease in dipole-dipole forces
    the high atomic masses as you go down the family
    120s
  • Q15
    Graphite and diamond are network solids, but graphite is slippery, black, and a conductor, while diamond is hard, colorles, and an insulator. This is because
    graphite and diamond are made of different elements
    graphite contains impurities that result in a less dense solid
    diamond is made up of tetrahedrally bonded carbon atoms, while graphite is made up of fused six-membered rings arranged in sheets
    diamond contains covalent bonds, while graphite contains ionic bonds
    120s

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