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प्रश्न
Give the molecular model for a solid and use it to explain why a solid has a definite volume and a definite shape.
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उत्तर
Here the molecules are very tightly packed that there is no or very less intermolecular space and there is a high intermolecular force of attraction (force of cohesion).
The molecules do not move about their mean position and thus solids have a definite shape and volume.
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संबंधित प्रश्न
At high altitudes, water boils above 100° C.
Write true or false for the following statement
In a gas, the molecules can move anywhere in space.
Fill in the blank
A solid exerts pressure .....................
Give reason :
Liquids have a definite volume but no definite shape.
Fill in the blank
Liquids have a definite ............
Write whether the following statement is true or false.
The intermolecular force of attraction is the weakest in gases.
Write true or false for the statement. Rewrite the false statement correctly.
Solids can be compressed easily.
Name the phenomenon which cause the following change.
Formation of water vapour from water.
Multiple choice question.
Which of the following is a property of the liquids?
State the property of the following substance.
Sulphur is a yellow amorphous powder insoluble in water.
