Pressure, Temperature and RMS Speed Practice Questions

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Thermodynamics Learning Material
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Tutorial
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Notes
Revision
Questions
13.7Pressure, Temperature and RMS Speed

Physics Revision Questions for Pressure, Temperature and RMS Speed

1) The root mean square speed of an O2 gas sample (M = 32 g/mol) is 800 m/s. What is the temperature of oxygen in Kelvin degree?

  1. 822 K
  2. 1318 K
  3. 549 K
  4. 499 K

Correct Answer: A

2) The translational kinetic energy of 3 moles of an ideal gas is 8600 J. What is the temperature of gas in Celsius degree?

  1. 690°C
  2. 689°C
  3. 4155°C
  4. 417°C

Correct Answer: D

3) 0.2 moles of a gas are enclosed inside a rectangular container of dimensions 3 m × 2 m × 1 m. The molecules of gas have a diameter of 2 × 10-10 m each. What is the mean free path of gas molecules?

  1. 3.9 cm
  2. 2.8 cm
  3. 7.8 m
  4. 7.8 cm

Correct Answer: B

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