Advertisements
Advertisements
Question
Why can a piece of chalk be broken easily into smaller pieces while a coal piece cannot be broken easily?
Advertisements
Solution
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
RELATED QUESTIONS
Which of the following are matter?
Chair, air, love, smell, hate, almonds, thought, cold, lemon water, smell of perfume.
Define interconversion of states of matter. What are the two factors responsible for the change of states of matter?
What is volume ?
If an object weighs 6 N on earth what will be its weight on moon. What will be the change in its mass?
Fill in the blank
The molecules are at a greater distance in ______ compared to liquids.
A piece of chalk can be broken into small particles by hammering but a piece of iron cannot be taken into small particles by hammering. Which characteristic of the particles of matter is illustrated by these observations?
Fill in the following blank with suitable words :
The smell of perfume gradually spreads across a room due to .....................
State in which of the three states of matter:
The space between the particles is minimum.
A crystal of iodine is placed in a closed flat bottom flask and heated. State how you would conclude from the observations seen, that interparticle space is minimum in solids and maximum in gases.
Among the following ______ is not a mixture.
