Advertisements
Advertisements
प्रश्न
When sodium chloride is added to a definite volume of water and stirred well, a solution is formed, but there is no increase in the level of water. Why?
Advertisements
उत्तर
This is because there is some space between the particles of water in which the salt particles get accomodated when dissolved.
APPEARS IN
संबंधित प्रश्न
Give reasons for the following observation:
The smell of hot sizzling food reaches you several metres away, but to get the smell from cold food you have to go close.
Give reason:
When an empty gas jar is inverted over a gas jar containing a coloured gas, the gas also spreads into the empty jar.
For the following statement, say whether it describes a solid, a liquid or a gas.
Particles move about very quickly.
Name the phenomenon which cause the following change:
Conversion of ice into water.
Give two examples of the following:
Substances which are rigid and not compressible.
What happens when a solid is heated ?
Write whether the following statement are true or false.
Solids have the largest inter-molecular space.
Write true or false for each statement. Rewrite the false statement correctly.
If the intermolecular space is more than the intermolecular force will be weaker.
There are large intermolecular gaps in
Describe simple experiment to show that particles of matter are closely packed in solids and less in liquids.
