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प्रश्न
Why do gases diffuse very fast?
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उत्तर
Gases diffuse very fast because of the presence of large spaces between the gaseous particles and high kinetic energy of these molecules. They diffuse faster than the other states of matter.
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संबंधित प्रश्न
The mass per unit volume of a substance is called density.
(density = mass/volume).
Arrange the following in order of increasing density-
air, exhaust from chimneys, honey, water, chalk, cotton and iron.
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.
Name the physical state of matter which can be easily compressed.
State whether the following statement is true or false :
Red-brown bromine vapour diffuse into air in a gas jar but the colourless air molecules do not diffuse into bromine vapour.
Why do gases have neither a fixed shape nor a fixed volume?
Name two gases of air which dissolve in water by diffusion. What is the importance of this process in nature?
Why does a gas exert pressure?
Comment upon the following:-
filling a gas container
Which of the following is false for gases?
