CH-599
States of matter
Chemistry · Secondary 3 · Medium · States of matter
A sample of gas is collected in a syringe at 25 °C. The plunger is pushed so that the volume of the gas is halved while the temperature remains constant.
According to the particle model, what happens to the gas particles?
According to the particle model, what happens to the gas particles?
- They move slower and collide less often with the walls.
- They move at the same speed but collide more often with the walls.
- They become smaller so that pressure stays the same.
- They gain energy and move faster, keeping pressure constant.
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