Gases 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. Which two factors will deviate a gas from ideality?

Question 2 2. What is the new pressure for an enclosed gas at 50KPa if its volume changes from 20dm^3 to 10dm^3?

Question 3 3. Maxwell Distribution is _____

Question 4 4. An ideal gas with mass 5g exists in a container with a volume of 0.005 m^3 at 1 atmosphere and 25 degrees Celsius. Given that the molar mass of a substance is its mass divided by the number of moles of that substance, what is the molar mass of this ideal gas?

Question 5 5. Which of the following describes the variation of pressure and temperature for a constant amount for an ideal gas at constant volume?

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Question 6 6. Gas Y has a molar mass of 180 g/mol and Gas X has a molar mass of 5 g/mol. How much faster or slower does Gas X effuse from a porous pot than Gas Y at the same temperature?

Question 7 7. Graham's Law relates _____

Question 8 8. Convert 20 degrees Celsius to degree Fahrenheit.

Question 9 9. Which of the following relationships between Degree Celsius (C) and Kelvin (K) is correct?

Question 10 10. Based on Kinetic molecular theory, ideal gases follow a set of principles among which collisions between the particles are considered to be elastic. Which of the following describes kinetic energy of particles in an elastic collision?

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Question 11 11. Four experiments involving ideal gases are performed at different temperatures. At which temperature will the kinetic energy of particles be highest?

Question 12 12. A temperature difference of 2 degrees on the Celsius scale is equal to how much temperature difference on the Fahrenheit scale?

Question 13 13. A 4 L sample of gas is heated from 20 K to 200 K. What will its final volume be?

Question 14 14. If gas is added to a container which has a fixed volume, what happens to the pressure in that container?

Question 15 15. If you want to find the volume of a gas using the ideal gas law, which values do you need to know?

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Question 16 16. At constant temperature, what happens to the pressure when the volume is doubled?

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

Question 19 19. 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 20 20. The _____ states that gas particles are constantly moving in rapid, random movement.

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

Question 23 23. Why does the volume of gas particles become important when the volume of the container is decreased?

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

Question 25 25. Absolute zero is:

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Question 26 26. Which is considered ideal conditions?

Question 27 27. At constant pressure, what happens to the volume of a gas when the absolute temperature doubles?

Question 28 28. 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 29 29. How would you rearrange the ideal gas equation to calculate the pressure of a gas?

Question 30 30. A sample of hydrogen has a volume of 25 L under a pressure of 5 atm. What will the pressure of this gas be if the volume were decreased to 5 L?

Gases 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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