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प्रश्न
Explain the following :
When an incense stick is lighted in the corner of a room, its fragrance spreads quickly in the entire room.
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उत्तर
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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संबंधित प्रश्न
Name the three states of matter and define them.
What is the relation between intermolecular space and intermolecular force ?
When sugar is dissolved in water, there is no increase in the volume. Which characteristic of matter is illustrated by this observation?
Even two or three crystals of potassium permanganate can impart colour to a very large volume of water. Which characteristic of particles of matter is illustrated by this observation?
Give reasons for the following:
Solids have a definite shape and are highly rigid while gases have to definite shape and are least rigid.
Name the three states of matter.
Differentiate the general properties of solids, liquids and gases in the form of a table — with reference to space.
Give a reason why:
Gases have no definite volume and no definite shape.
With reference to the liquid state of matter – answer the following
How does the stored energy, have an effect on inter-particles space.
Air is not compressible.
