Exam 4.txt

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Author:
timhedrick4
ID:
14004
Filename:
Exam 4.txt
Updated:
2010-04-11 22:06:11
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Exam 4
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Description:
Exam 4 Review
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  1. True/False: As you increase temperature, you increase the average energy of the gas particles.
    True
  2. True/False: If the number of gas particles is halved, the volume of the gas will be halved given that the temperature and pressure do not change.
    True
  3. True/ False: As we climb a mountain to a higher altitude, we experience a pressure decrease.
    True
  4. True/False: The main component of the air we breathe is oxygen gas.
    False
  5. True/False: For all gas law calculations, the temperature must be in kelvins.
    True
  6. True/False: Vapor pressure of water increases with increasing temperature because the higher temperature causes more water molecules to evaporate.
    True
  7. True/False: The volume of a gas and the number of particles is inversely proportional.
    False
  8. Using pure oxygen in scuba diving tanks is a good method of preventing the nitrogen bends.
    False
  9. True/False: Pressure depends on how many gas particles are in a container.
    True
  10. True/False: Pressure is calculated by P=Area/Force
    False
  11. True/False: The volume of 9.00 grams of water vapor at STP is 11.2L
    True
  12. True/False: A gas may not behave ideally under conditions of low pressure or high temperature.
    False
  13. True/False: The boiling point is the temperature at which the vapor pressure of a solution is equal to the intermolecular forces.
    False
  14. True/False: Increasing the temperature increases the vaporization rate of a liquid because the excess energy is used to break covalent bonds.
    False
  15. True/False: The shapes of protein molecules are determined by intermolecular forces.
    True
  16. True/False: Atoms in a solid are always arranged in a well ordered pattern.
    False
  17. True/False: Oil would be considered a nonvolatile liquid while gasoline would be considered volatile.
    True
  18. True/False: Viscosity increases with increased intermolecular force because the molecules attract each other strongly which hinders the flow.
    True
  19. True/False: The solubility of solids in water generally increases with increasing temperature.
    True
  20. True/False: The tragedy at Lake Nyos in Cameroon, West Africa, was due to the sudden release of excessive amounts of carbon monoxide dissolved in the lake water.
    False
  21. True/False: The solubility of gases in water increases with increasing pressure above the water.
    True
  22. True/False: Tap water contains dissolved nitrogen and oxygen.
    True
  23. True/False: The minor component in a solution is called the solvent.
    False
  24. True/False: The tragedy at Lake Nyos in Cameroon, West Africa, was due to the sudden release of excessive amounts of nitrogen dissolved in the lake water.
    False
  25. True/False: A sugar solution is an example of a weak electrolyte solution.
    False
  26. True/False: The molarity of a solution prepared by dissolving 15.0 grams of NaCl in 1000mL of water is 0.15M
    False

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