SC-375
Particle model of matter
Lower Sec Science · Secondary 1 · Hard · Particle model of matter
A student observes that when a gas is heated at constant volume, the pressure inside the container increases. Using the particle model, which statement best explains this observation?
- The gas particles become larger and take up more space.
- The gas particles move faster and collide more frequently with the container walls.
- The number of gas particles in the container increases.
- The gas particles become more closely packed and cannot move.
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