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प्रश्न
Give reasons:
A gas exerts pressure on the walls of the container.
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उत्तर
- Gas particles move randomly in all directions at high speed.
- As a result, the particles hit each other and also forcefully hit the walls of the container, exerting pressure on them.
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संबंधित प्रश्न
Tabulate the differences in the characteristics of states of matter.
If the fish is being fried in a neighbouring home, we can smell it sitting in our own home. Name the process which brings this smell to us.
Why do gases have neither a fixed shape nor a fixed volume?
When an incense stick (agarbatti) is lighted in one corner of a room, its fragrance quickly spreads in the entire room. Name the process involved in this.
Why does a gas fill a vessel completely?
A substance has neither a fixed shape nor a fixed volume. State whether it is a solid, a liquid or a gas.
Comment upon the following:-
compressibility
Comment upon the following:-
density
Explain why?
- A gas fills a vessel completely?
- Camphor disappears without leaving any residue.
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| Fig. I | Fig. II |
In figure-I, an air column of length ℓ1 is entrapped by a column of Hg of length 8 cm. In figure-II length of same air column at the same temperature is ℓ2. The `ℓ_1/ℓ_2` is:
(1 atm = 76 cm of Hg)
