Physics 0625 · IGCSE · Thermal properties and temperature

Thermal properties and temperature — practice question

The temperature of the air inside a sealed bottle rises. Which row shows the changes that happen to the trapped air?

  • Apressure of the air decreases; average speed of molecules in the air decreases
  • Bpressure of the air decreases; average speed of molecules in the air increases
  • Cpressure of the air increases; average speed of molecules in the air decreases
  • Dpressure of the air increases; average speed of molecules in the air increases

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