SC-371
Particle model of matter
Lower Sec Science · Secondary 1 · Medium · Particle model of matter
A sealed plastic bottle with a balloon over its mouth is placed in hot water. The balloon inflates. Which statement best explains this using the particle model of gases?
- Gas particles become more closely packed when heated.
- Gas particles move faster and hit the balloon more often when heated.
- The number of gas particles increases when heated.
- The size of each gas particle increases when heated.
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