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प्रश्न
Arrange the following substances in increasing order of forces of attraction between particles -
water, sugar, oxygen
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उत्तर
- Sugar is a solid; the forces of attraction between the particles of sugar are strong. Water is a liquid; the forces of attraction here are weaker than sugar. Oxygen is a gas; the forces of attraction are the weakest in gases.
- Thus, the increasing order of forces of attraction between the particles of water, sugar and oxygen is
- Oxygen < Water < Sugar.
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संबंधित प्रश्न
Name the physical state of matter which can be easily compressed.
Name two gases which are supplied in compressed form in homes and hospitals.
Fill in the following blank with suitable words :
Solid, liquid and gas are the three ........................ of matter.
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.
Name two gases of air which dissolve in water by diffusion. What is the importance of this process in nature?
Why does a gas fill a vessel completely?
When a gas jar full of air is placed upside down on a gas jar full of bromine vapours, the red-brown vapours of bromine from the lower jar go upward into the jar containing air. In this experiment :
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
- What will happen when the glass plate between the two jars is pulled away?
- 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.
Comment upon the following:-
rigidity
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| Fig. I | Fig. II |
In figure-I, an air column of length ℓ1 is entrapped by a column of Hg of length 8 cm. In figure-II length of same air column at the same temperature is ℓ2. The `ℓ_1/ℓ_2` is:
(1 atm = 76 cm of Hg)
