Physics 5054 · O Level · Particle model

Particle model — practice question

A liquid needs an extremely large rise in pressure to be compressed, whereas a gas can be compressed with a much smaller rise in pressure. Which statement explains this?

  • AMolecules repel each other very strongly when very close.
  • BThe attractive forces between molecules are small at large distances.
  • CThe molecules in the gas collide with the walls of their container and rebound.
  • DThe molecules of a liquid are constantly moving at random.

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