Gases: Help and Review 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. Temperature is a measure of:

Question 2 2. Which Celsius temperature is equal to 310 K?

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

Question 4 4. As water heats up from 280 K to 310 K, the average kinetic energy of its molecules will:

Question 5 5. Absolute zero is:

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Question 6 6. 1000 mL of a gas is cooled from 500 K to 250 K. What is its final volume?

Question 7 7. 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 8 8. A balloon has an initial volume of 150 mL at 25 degrees Celsius. If the temperature is increased to 75 degrees Celsius, what is the final volume?

Question 9 9. The _____ states that gas particles are constantly moving in rapid, random movement.

Question 10 10. What advantage does the van der Waals equation give us over the ideal gas law?

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Question 11 11. In the ideal gas equation, what does R represent?

Question 12 12. Why would a scientist have difficulty observing the behavior of an ideal gas?

Question 13 13. Which is considered ideal conditions?

Question 14 14. To use Boyle's Law, which of the following needs to remain constant?

Question 15 15. If someone is measuring pressure, they might use any of the following units EXCEPT _____.

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Question 16 16. Standard temperature and standard pressure refer to:

Question 17 17. What does b represent in the van der Waals equation?

Question 18 18. If you add a gas to a container with a fixed volume, what happens to the amount of pressure in that container?

Question 19 19. Which units of pressure are needed if you are going to use 0.0821 as your ideal gas constant?

Question 20 20. 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?

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Question 21 21. What volume is occupied by 15.0 moles of carbon dioxide gas at standard temperature and pressure?

Question 22 22. 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 23 23. Assuming the volume is held constant, what happens to the pressure of a gas when the absolute temperature doubles?

Question 24 24. What does the Maxwell-Boltzmann curve tell us?

Question 25 25. A container has a volume of 53.9 L. Assuming it is at STP, how many moles of gas particles does it contain?

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Question 26 26. Which of the following statements best represents Graham's Law?

Question 27 27. Why does the probability curve become narrower when gas particles are more massive?

Question 28 28. Which Kelvin temperature is equal to 25 degrees Celsius?

Question 29 29. A container holds a mixture of two different gases. The oxygen in a container exerts 80 mmHg of pressure on the inside of the container. The total pressure inside the container is 120 mmHg. What is the pressure of the other gas in the container?

Question 30 30. An expandable container is holding 0.75 moles of argon with a volume of 5.0 L. Assuming the temperature and pressure are held constant, how many moles of argon would be needed to increase the volume to 7.0 L?

Gases: Help and Review 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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