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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.
Name the three states of matter. Give one example of each.
Why do gases have neither a fixed shape nor a fixed volume?
Give two reasons to justify that Water is a liquid at room temperature.
Give one example of diffusion of gases in a liquid.
Explain how, the smell of food being cooked in the kitchen reaches us even from a considerable distance.
Name two gases of air which dissolve in water by diffusion. What is the importance of this process in nature?
When a gas jar containing colourless air is kept upside down over a gas jar full of brown-coloured bromine vapour, then after some time, the brown colour of bromine vapour spreads into the upper gas jar making both the gas jars appear brown in colour. Which of the following conclusion obtained from these observations is incorrect?
How does the substance of gaseous particles change to a liquid state?
Comment upon the following:-
density
