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प्रश्न
Comment upon the following:-
rigidity
उत्तर
The rigidity can be expressed as the tendency of matter to resist a change in shape.
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संबंधित प्रश्न
Tabulate the differences in the characteristics of states of matter.
Give reasons:
We can easily move our hand in air, but to do the same through a solid block of wood, we need a karate expert.
Which of the following diffuses fastest and which the slowest?
Solid, Liquid, Gas Give reasons for your answer.
Give one example of diffusion of gases in a liquid.
A student placed a gas jar containing air in the upside down position over a gas jar full of red-brown bromine vapours. He observed that the red-brown colour spread upwards into the jar containing air. Based on this observation, the student concluded that it is only the bromine vapour which moves up and diffuses into air in the upper jar, the air from the upper jar does not move down by diffusion into the lower jar containing bromine vapours. Do you agree with this conclusion of the student? Give reason for your answer.
Why do gases not have fixed shape?
______ is not affected by gravity.
Comment upon the following:-
filling a gas container
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.
A gaseous mixture of He and O2 is found to have a density of 0.518 gL-1 at 25° C and 720 torr. The mass percent of helium in this mixture is ______.
