Advertisements
Advertisements
प्रश्न
Write down five general properties of solids, liquids, and gases.
उत्तर
Solids:
- The molecules here are very tightly packed having negligible or very less intermolecular space.
- They have the strongest intermolecular force of attraction.
- The molecules have very small vibration about their mean position i.e. small amplitude.
- They have a definite shape and volume.
- They are generally hard and rigid.
- They are good conductors of heat.
Liquids:
- Molecules are less tightly packed.
- The intermolecular force of attraction is less than that of solids.
- The molecules here can move from one place to another
- Do not have any particular shape of their own and thus acquire the shape of the vessel.
- A particular quantity of a liquid has a definite volume at a given temperature.
Gases :
- The force of attraction between the molecules is the least.
- The intermolecular space is the largest.
- Neither has a definite shape nor a definite volume.
- The molecules move independently.
- Worst conductors of heat.
APPEARS IN
संबंधित प्रश्न
The temperature of a substance remains unaffected during its change of state.
Boiling takes place at all temperatures.
Evaporation takes place over the entire mass of the liquid.
Fill in the blank
In a solid, the molecules ............................................ but they remain at their fixed positions.
Describe the molecular model for a liquid. I-low does it explain that a liquid has no definite shape, but has a definite Volume?
Fill in the blank
The temperature at which a liquid boils is called the ................. point of that liquid.
Fill in the blank
Liquids have no definite ...........
Name the phenomenon which cause the following change.
Conversion of water into steam.
Multiple choice question.
The state of matter which has no definite shape or volume is called
State what would you observe if
(a) sugar is added to pebbles take in a plastic beaker
(b) sand is added to glass balls in a beaker. What would you conclude from this imaginative demonstration?