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प्रश्न
Fill in the blank
A solid exerts pressure .....................
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उत्तर
A solid exerts pressure downwards on its base.
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संबंधित प्रश्न
The melting point of ice is 0°C.
What is meant by the intermolecular forces of attraction? How do they vary in solids, liquids and gases?
Fill in the blank
The inter-molecular spacing is .......... in solids ........... in liquids and ............... in gases.
Fill in the blank
A solid is ............ rigid.
What happens when a solid is heated?
Give a reason for the Pure substances have fixed melting or boiling points.
Write whether the following statement is true or false
All solids, on heating, first change to the liquid and then to the gaseous state always.
Write true or false for the statement. Rewrite the false statement correctly.
Solids can be compressed easily.
Match the following
| Column A | Column B | ||
| a | Solids | 1 | Can flow in all directions |
| b | Sublimination | 2 | The temperature at which a liquid changes into its gaseous state |
| c | Boiling Point | 3 | Can have any number of free surfaces |
| d | Gases | 4 | Gaps between particles |
| e | Intermolecular space | 5 | Change of state from solid to gas |
Define the term ‘Liquefaction of gases’.
