Gases in Chemistry: Tutoring Solution 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!

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Question 1 1. Standard temperature and standard pressure refer to:

Question 2 2. A sample of an ideal gas is heated from 200 degrees Celsius to 400 degrees Celsius. If the initial pressure is 45 torr, then what is the final pressure?

Question 3 3. Under non-ideal conditions, why was the pressure lower using the van der Waals equation?

Question 4 4. Which of the following statements best represents Graham's Law?

Question 5 5. 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?

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Question 6 6. If a 22.4 L container is holding 1.00 mole of a gas at 273 kelvins, then what is its pressure?

Question 7 7. 1000 mL of a gas is cooled from 500 K to 250 K. What is its final volume?

Question 8 8. Gas particles have random _____.

Question 9 9. If carbon dioxide molecules effuse at an average rate of 5 mol/s, at what rate would diatomic hydrogen molecules effuse in the exact same conditions?

Question 10 10. A 4 L sample of gas is heated from 20 K to 200 K. What will its final volume be?

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Question 11 11. If you want to find the volume of a gas using the ideal gas law, which values do you need to know?

Question 12 12. What volume is occupied by 15.0 moles of carbon dioxide gas at standard temperature and pressure?

Question 13 13. To use Charles' Law, which of the following needs to remain constant?

Question 14 14. What does it mean when a collision is elastic?

Question 15 15. Which of the following is TRUE about most gases?

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Question 16 16. 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 17 17. 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?

Question 18 18. 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 19 19. Why does the volume of gas particles become important when the volume of the container is decreased?

Question 20 20. 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?

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Question 21 21. Which of these conditions is NOT considered 'non-ideal'?

Question 22 22. The _____ states that gas particles are constantly moving in rapid, random movement.

Question 23 23. If you add a gas to a container with a fixed volume, what happens to the amount of pressure in that container?

Question 24 24. Why does the probability curve become narrower when gas particles are more massive?

Question 25 25. As water heats up from 280 K to 310 K, the average kinetic energy of its molecules will:

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Question 26 26. How do you calculate a and b in the van der Waals equation?

Question 27 27. Absolute zero is:

Question 28 28. If you know the temperature, volume, and pressure of a gas, how would you rearrange the ideal gas equation to find the number of moles?

Question 29 29. The ideal gas constant, R, can be found using which of the following equations?

Question 30 30. Assuming the volume is held constant, what happens to the pressure of a gas when the absolute temperature doubles?

Gases in Chemistry: Tutoring Solution 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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