SC-355
Diffusion
Lower Sec Science · Secondary 1 · Hard · Diffusion
A drop of perfume is sprayed at one corner of a room. After a while, a student at the other corner can smell it. Which statement best explains this observation using the particle model?
- Perfume particles move randomly and spread out between air particles throughout the room.
- Air particles carry the perfume particles only downwards due to gravity.
- Perfume particles disappear and reappear at the other corner of the room.
- Air particles in the room remain fixed while perfume particles stay at the corner.
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