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प्रश्न
Comment upon the following:-
kinetic energy
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उत्तर
Kinetic energy is the energy possessed by a particle due to its motion.
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संबंधित प्रश्न
Name the three states of matter. Give one example of each.
State two characteristic properties of a gas.
Why do gases have neither a fixed shape nor a fixed volume?
Explain why, when a bottle of perfume is opened in a room, we can smell it even from a considerable distance.
Why do gases diffuse very fast?
Look at the diagram on the right side. Jar A contains a red-brown gas whereas jar B contains a colourless gas. The two gas jars are separated by a galas plate placed between them
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- Name the brown gas which could be in jar A.
- Which is the colourless gas most likely to be present in jar B?
- Name one coloured solid and one colourless liquid which can show the same phenomenon.

A substance has neither a fixed shape nor a fixed volume. State whether it is a solid, a liquid or a gas.
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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)
2 litre He gas at 2 atm and 300 K is inserted into a 4 litre rigid container containing N2 at 600 K and 4 atm. Finally mixture is maintained at 600 K temperature. The final pressure of gaseous mixture would be ______ torr.
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.


