Physics 0625 · IGCSE · Kinetic particle model of matter

Kinetic particle model of matter — practice question

A gas is enclosed in a sealed container in a laboratory. The gas temperature rises. What occurs to the average speed, and what occurs to the total kinetic energy of the gas molecules?

  • Aaverage speed does not change; total kinetic energy does not change
  • Baverage speed does not change; total kinetic energy increases
  • Caverage speed increases; total kinetic energy does not change
  • Daverage speed increases; total kinetic energy increases

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