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प्रश्न
Why does a gas exert pressure?
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उत्तर
When gas is stored in a container, the fast moving particles of the gas collide with each other and with the walls of the container; thus, exerting pressure on the walls of container.
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संबंधित प्रश्न
The mass per unit volume of a substance is called density.
(density = mass/volume).
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air, exhaust from chimneys, honey, water, chalk, cotton and iron.
Give reasons:
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Give a reason for the following observation.
Naphthalene balls disappear with time without leaving any solid.
Name two gases which are supplied in compressed form in homes and hospitals.
Which of the two diffuses faster : a liquid or a gas?
What does the diffusion of gases tell us about their particles?
The space between ______ particles is the greatest one.
Comment upon the following:-
compressibility
Comment upon the following:-
density
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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)
