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प्रश्न
Name the physical state of matter which can be easily compressed.
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उत्तर
Gases can be compressed easily into small volumes because there are large spaces between their particles.
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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.
Arrange the following substances in increasing order of forces of attraction between particles -
water, sugar, oxygen
Explain how, the smell of food being cooked in the kitchen reaches us even from a considerable distance.
Explain why, diffusion occurs more quickly in a gas than in a liquid.
Why does a gas exert pressure?
Why does a gas fill a vessel completely?
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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- What name is given to the phenomenon which takes place?
- 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.
The space between ______ particles is the greatest one.
Which of the following is false for gases?
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.
