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प्रश्न
Explain how, the smell of food being cooked in the kitchen reaches us even from a considerable distance.
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उत्तर
The smell of food cooked in the kitchen reaches us even from a considerable distance because the tiny particles of the vapour of food mix with the air and move continuously in all directions. This process is called diffusion.
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संबंधित प्रश्न
Give reasons:
A gas fills completely the vessel in which it is kept.
Arrange the following substances in increasing order of forces of attraction between particles -
water, sugar, oxygen
A bottle of perfume was opened in a room. The smell of its vapours spread in the entire room. Name the property of gases which is responsible for this behaviour of perfume vapours.
When an incense stick (agarbatti) is lighted in one corner of a room, its fragrance quickly spreads in the entire room. Name the process involved in this.
Explain why, when a bottle of perfume is opened in a room, we can smell it 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?
Why does a gas exert pressure?
Why do gases not have fixed shape?
Comment upon the following:-
shape
Which of the following is TRUE about gaseous state?
