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Gases: AP Chemistry Lesson Plans Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

Page 1

Question 1 1. If you want to find the volume of a gas using the ideal gas law, which values do you need to know?

Question 2 2. What does the Maxwell-Boltzmann curve tell us?

Question 3 3. To use Charles' Law, which of the following needs to remain constant?

Question 4 4. Dana has placed a few drops of food coloring in a mixture of water and vinegar to dye hard-boiled eggs with her daughter in preparation for Easter. The food coloring changing the color of the water is an example of _____.

Question 5 5. If a gas with a pressure of 6 atmospheres is cooled from 500 K to 250 K, then what is its final pressure?

Page 2

Question 6 6. Which units of pressure are needed if you are going to use 0.0821 as your ideal gas constant?

Question 7 7. Hugo measures the pressure in his car's tire and finds that it is 32 Psi. What is the pressure if he converts this measurement from Psi to Torr?

Question 8 8. A gas is collected by water displacement at 25 degrees Celsius. The vapor pressure of water at that temperature is 24 mmHg. If the atmospheric pressure is 800 mmHg, then what is the pressure of the dry gas you collected?

Question 9 9. A bag of chips has a volume of 2.0 L at 760 torr of pressure. What is its volume in an airplane flying at a high altitude with a pressure of 550 torr?

Question 10 10. If you add a gas to a container with a fixed volume, what happens to the amount of pressure in that container?

Page 3

Question 11 11. The ideal gas constant, R, can be found using which of the following equations?

Question 12 12. As water heats up from 280 K to 310 K, the average kinetic energy of its molecules will:

Question 13 13. Why can't all of the gas particles in a container have very high or very low speeds?

Question 14 14. Assuming the volume is held constant, what happens to the pressure of a gas when the absolute temperature doubles?

Question 15 15. How does a higher temperature affect the probability distribution curve of gas particles?

Page 4

Question 16 16. What does it mean when a collision is elastic?

Question 17 17. In the ideal gas equation, what does R represent?

Question 18 18. Which of these conditions is NOT considered 'non-ideal'?

Question 19 19. Temperature is a measure of:

Question 20 20. Which Kelvin temperature is equal to 25 degrees Celsius?

Page 5

Question 21 21. Oxygen is collected in a test tube over 30 degree Celsius water. The vapor pressure of the water at that temperature is about 32 mmHg. If the atmospheric pressure is 640 mmHg, then what percentage of the gas in the test tube is oxygen?

Question 22 22. In the van der Waals equation, what does a represent?

Question 23 23. At constant pressure, what happens to the volume of a gas when the absolute temperature doubles?

Question 24 24. Why would a scientist have difficulty observing the behavior of an ideal gas?

Question 25 25. To use Boyle's Law, which of the following needs to remain constant?

Page 6

Question 26 26. If someone is measuring pressure, they might use any of the following units EXCEPT _____.

Question 27 27. Gas particles have random _____.

Question 28 28. Assuming pressure and temperature are held constant, then what happens to the volume of a non-rigid container when the number of molecules in the container is doubled?

Question 29 29. Mark has unknowingly driven over a very large nail when exiting his work parking lot. He has a long commute home, and by the time he arrives he will have a flat tire. The air that is slowly escaping from the hole in his tire is an example of _____.

Question 30 30. Which of the following variables is NOT included in the ideal gas equation?

Gases: AP Chemistry Lesson Plans Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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