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JAMB Chemistry 1981 Question 34

Question 34

Gas Laws

Which of the following is NOT a true statement of the Kinetic Theory of Gases?

  1. A.The molecules move at random
  2. B.The size of molecules is negligible as compared with the volume of gas
  3. C.The molecular collisions are perfectly elastic
  4. D.Every molecule has the same kinetic energy at a particular temperature
  5. E.The average kinetic energy is proportional to the absolute temperature of the gas.
Show the answer and explanation

Answer: D (Every molecule has the same kinetic energy at a particular temperature)

Explanation

Molecules in a gas have a spread of speeds and energies; only their average kinetic energy is fixed by the temperature.