Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
____ 1. The volume of a gas is 400.0 mL when the pressure is 1.00 atm. At the same temperature, what is the pressure at which the volume of the gas is 2.0 L? a. | 0.5 atm | c. | 0.20 atm | b. | 5.0 atm | d. | 800 atm |
____ 2. The pressure of a sample of helium is 2.0 atm in a 200-mL container. If the container is compressed to 10 mL without changing the temperature, what is the new pressure? a. | 200 atm | c. | 100 atm | b. | 0.10 atm | d. | 40. atm |
____ 3. A sample of argon gas at standard pressure occupies 1000. mL. At constant temperature, what volume does the gas occupy if the pressure increases to 800. mm Hg? a. | 500. mL | c. | 950. mL | b. | 760. mL | d. | 1053. mL |
____ 4. A sample of gas collected at 750. mm Hg occupies 250. mL. At constant temperature, what pressure does the gas exert if the volume increases to 300. mL? a. | 50. mm Hg | c. | 625. mm Hg | b. | 550. mm Hg | d. | 900. mm Hg |
____ 5. At 710. mm Hg, a sample of nitrogen gas occupies 625 mL. What volume does the gas occupy if the temperature remains constant and the pressure increases to 760. mm Hg? a. | 135 mL | c. | 600 mL | b. | 584 mL | d. | 669 mL |
____ 6. A 425 mL sample of gas is collected at 780. mm Hg. If the temperature remains constant and the pressure falls to 680. mm Hg, what is the new volume? a. | 325 mL | c. | 488 mL | b. | 370 mL | d. | 525 mL |
____ 7. The volume of a gas is 5.0 L when the temperature is 5.0ºC. If the temperature is increased to 10.0ºC without changing the pressure, what is the new volume? a. | 2.5 L | c. | 5.1 L | b. | 4.8 L | d. | 10.0 L |
____ 8. At 7.0ºC, the volume of a gas is 49 mL. At the same pressure, its volume is 74 mL at what temperature? a. | 3.0ºC | c. | 120ºC | b. | 16ºC | d. | 150ºC |
____ 9. The volume of a gas is 93 mL when