Advertisements
Advertisements
प्रश्न
Why can a piece of chalk be broken easily into smaller pieces while a coal piece cannot be broken easily?
Advertisements
उत्तर
The particles of matter have force acting between them. This force keeps the particles together. The strength of this force of attraction is lesser in chalk, hence it could be broken easily into smaller pieces.
But the strength of inter-molecular force of attraction is very strong in coal, therefore it is not possible to break them into small pieces.
APPEARS IN
संबंधित प्रश्न
What are the two conditions for the interconversion of states of matter ?
Write whether the following statement is true or false.
A gas has no free surface.
There are large intermolecular gaps in
- water
- iron ball
- common salt
- air
What is volume ?
Give reason Gases can be compressed easily .
Even two or three crystals of potassium permanganate can impart colour to a very large volume of water. Which characteristic of particles of matter is illustrated by this observation?
Bromine particles are almost twice as heavy as chlorine particles. Which gas will diffuse faster; bromine (vapour) or chlorine? Explain your answer.
State in which of the three states of matter:
Are the atoms or particles far apart
State in which of the three states of matter:
The space between the particles is minimum.
Air is not compressible.
