A gas syringe contains air at a fixed temperature. The plunger is pushed in so that the volume of air decreases from 60 \, \text{cm}^3 to 30 \, \text{cm}^3. According to the particle model, what happens to the air particles when the plunger is pushed in?

They become closer together and collide with the walls more often.

They become larger and move more slowly.

They become smaller and stop moving.

Their number increases but spacing stays the same.

SC-385

Particle model of matter

Lower Sec Science · Secondary 1 · Medium · Particle model of matter

A gas syringe contains air at a fixed temperature. The plunger is pushed in so that the volume of air decreases from

60 \, \text{cm}^3

30 \, \text{cm}^3

.

According to the particle model, what happens to the air particles when the plunger is pushed in?

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