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Lesson: Pressure, Volume, and Temperature of an Ideal Gas

Worksheet: Pressure, Volume, and Temperature of an Ideal Gas • 6 Questions

Q1:

A vacuum chamber does not produce a true vacuum, but can produce a very low pressure of N/m2 at a temperature of . How many molecules per cubic centimeter remain in the vacuum chamber?

  • A
  • B
  • C
  • D
  • E

Q2:

A company advertises that it delivers helium at a gauge pressure of Pa in a cylinder of volume 43.8 L. How many balloons can be inflated to a volume of 4.00 L with that amount of helium? Assume the pressure inside the balloons is Pa and the temperature in the cylinder and the balloons is .

  • A
  • B
  • C
  • D
  • E

Q3:

A bicycle tire contains 2.00 L of gas at an absolute pressure of N/m2 and a temperature of . An amount of gas that has a volume of cm3 at atmospheric pressure is released from the tire, having negligible effect on the tire’s temperature and volume. What is the pressure of the gas in the tire after the gas is removed?

  • A Pa
  • B Pa
  • C Pa
  • D Pa
  • E Pa

Q4:

A gas-filled incandescent light bulb is manufactured so that the gas inside the bulb is at atmospheric pressure when the bulb has a temperature of . Find the gauge pressure inside such a bulb when its average temperature is , neglecting any change in volume due to thermal expansion or gas leaks.

Q5:

A high-pressure gas cylinder contains 50.0 L of toxic gas at a pressure of N/m2 and a temperature of . The cylinder is cooled to dry ice temperature to reduce the leak rate and pressure so that it can be safely repaired.

What is the final pressure in the tank, assuming a negligible amount of gas leaks while being cooled and that there is no phase change?

  • A Pa
  • B Pa
  • C Pa
  • D Pa
  • E Pa

What is the final pressure if one-tenth of the gas escapes?

  • A Pa
  • B Pa
  • C Pa
  • D Pa
  • E Pa

To what temperature must the tank be cooled to reduce the pressure to 1.00 atm (assuming the gas does not change phase and that there is no leakage during cooling)?

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