Advertisements
Advertisements
प्रश्न
Give reason of Why do liquids and gases flow but solids do not ?
Advertisements
उत्तर
The molecules of liquids and gases are far apart i.e.
have more gaps, intermolecular attraction force is very less as compared to solids, hence liquids and gases can flow but solids do not as gaps in solid molecules is less and molecular force of attraction very strong.
APPEARS IN
संबंधित प्रश्न
Define the following term.
Element
Write your observation and conclusion for the following.
When a small stone is gently dipped into a glass filled with water.
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 statement. Rewrite the false statement correctly.
Solids and liquids can flow.
Give two examples of the following:
Substances which do not change their states.
Fill in the blank
Molecules in a ________ are packed very closely.
State two characteristics of matter demonstrated by diffusion.
State the term which refers to the conversion of a substance on heating from.
- solid-state to liquid state
- liquid state to vapour state
- vapour state to liquid state
- liquid state to solid-state.
Match the characteristics of the three states of matter in List I with their correct answer from List II.
| List I | List II |
| 1. Have no definite shape, volume or free surface | A: Solids only |
| 2. Are highly compressible and least rigid | B: Liquids only |
| 3. Have a definite volume, no definite shape and are slightly diffusable | C: Gases only |
| 4. Are not compressible and have no diffusability | D: Liquids and gases only |
| 5. Have mass and occupy space | E: Solids and gases only |
| F: Solids, liquids and gases |
Fill in the blank:
The three states of matter are classified on the basis of differences of certain _________.
