Multiple Choice: Circle the letter of the choice that best completes each statement or question. (2 points 1 C. each) Wh

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Multiple Choice Circle The Letter Of The Choice That Best Completes Each Statement Or Question 2 Points 1 C Each Wh 1 (53.53 KiB) Viewed 58 times

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Multiple Choice: Circle the letter of the choice that best completes each statement or question. (2 points 1 C. each) When discussing the diffusion of gases which of the following is true? a. All gases move at the same rate. b. Larger gas molecules have lower speed than smaller ones at a given temperature. Smaller gas molecules have lower speed than larger ones at a given temperature. d. Gases do not go through diffusion. 2. Which of the following is not part of the Kinetic Molecular Theory? a. Gas particles are extremely small and have relatively large distances between them. b. Gas particles are not attracted to or repelled from one another (behave independently). C. The average energy of particles is proportional to the gases temperature. d. Lowering temperature will increase particle collisions. 3. Which of the following is not a property of gases? a. Diffusion b. Expansion Pressure d. High Density 4. How are temperature and speed of particles related? a. Directly related b. Indirect related c. there is no relation d. heat 5. Which of the following can be used to measure pressure? a. Atmospheres b. Millimeters of Mercury C Kilopascals d. All of the above 6. Which of the following is true about the pressure inside a flexible container? a. Internal pressure is greater than external pressure. b. Internal pressure is less than external pressure. Pressure in a flexible container is always changing with the volume. d. Internal pressure will equal external pressure. c. 7. Temperature, volume and pressure are related for a fixed amount of gas in what law? a. Boyle's b. Gay-Lussac's Charles' d. Combined C.
8. The relationship between pressure and temperature, at constant volume is described by what law? a. Boyle's b. Gay-Lussac's C. Charles d. Combined 9. If temperature increases and pressure remains the same, the volume will a. decrease b. increase C. remain the same d. cannot be determined 10. If temperature decreases and volume remains the same, the pressure will a. decrease b. increase cremain the same d. cannot be determined 11. What variable is mentioned in the ideal gas law that is assumed to be constant in the other gas laws? a. volume b. pressure c. temperature d. number of moles 12. Additional gas is pumped into a volleyball and avolume decreases b. pressure increases c. temperature decreases d. number of moles decreases 13. An inflated beach ball is put into a refrigerator and a. volume decreases b. pressure increases c. temperature increases d. number of moles decreases 14. A piston in a car engine compresses gas into a smaller volume and a. volume increases b. pressure increases C temperature increases d. number of moles decreases
and because molecules follow the 15. Gases behave most ideally under Kinetic Molecular Theory. a. low temperature; low pressure b. high temperature; high pressure c. low temperature, high pressure d. high temperature, low pressure 16. The relation between pressure and temperature is a direct b. indirect there is no relation d. inconclusive 17. The relation between pressure and volume is a. direct b. indirect c. there is no relation d. inconclusive 18. STP stands for standard temperature and pressure. Which of the following represent(s) the values of STP? a. 760 mmHg and 273K b. 1 atm and of Celsius c. 101.3 kPa and 273K d. All of the above 19. Which of the following represents the correct value and units for R, in the ideal gas law equation? a 821 atm ml/mol K b. 821 atm mL/molec C.0821 atm L/mol "C 400 d. .0821 atm L/mol K 300 20. What gas law is represented by the graph? 200 a. Gay-Lussac's b. Charles 100 C Boyle's d. Combined 50 100 150 200 250 300 350 400 450 Temperature (9 21. What does the x-intercept represent in the graph above? a. Kinetic Point b. Absolute zero C. Zero degrees Celsius d. There is no gas inside the container Volume (m)