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प्रश्न
State two characteristic properties of a gas.
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उत्तर
The characteristics of gases are listed below:
- Gases have neither a fixed shape nor fixed volume.
- Gases can be compressed easily into smaller volumes.
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संबंधित प्रश्न
Give reasons:
A gas exerts pressure on the walls of the container.
Arrange the following substances in increasing order of forces of attraction between particles -
water, sugar, oxygen
Write the full forms of the following
- LPG
- CNG
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.
Give reason for the following observation :
The smell of hot sizzling food reaches us even from a considerable distance but to get the smell from cold food, we have to go close to it.
Comment upon the following:-
rigidity
Comment upon the following:-
fluidity
Comment upon the following:-
filling a gas container
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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)
Two gases A and B having molecular weights 60 and 45 respectively are enclosed in a vessel. The wt. of A is 0.50 g and that of B is 0.2 g. The total pressure of the mixture is 750 mm. The partial pressure of the gases B is ______ mm Hg.
