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Question
Explain the following :
When an incense stick is lighted in the corner of a room, its fragrance spreads quickly in the entire room.
Solution
The fragrance of lit incense stick spreads quickly in the room because the particles of matter are continuously moving in all directions. Both air and fragrance of incense stick have large intermolecular spaces. Due to this, the particles of one can easily occupy the inter-molecular spaces of the other.
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