Question

Why can a piece of chalk be broken easily into smaller pieces while a coal piece cannot be broken easily?

Answer 1

particles of matter have forces acting between them.this force keeps the particles together.The strength of this force of attraction varies from one kind of matter to another but coal not.......

Answer 2

Given that,

A piece of chalk can be broken easily into smaller pieces while a coal piece cannot be broken easily.

Intermolecular force :

These forces, which creates attraction or repulsion between the molecules. It is called Intermolecular force.

We need to find the reason of that we can break of chalk easily while a coal piece cannot be broken easily.

We know that,

In the chalk, the intermolecular attraction force is lesser in the molecules of chalk that's why we can break the chalk easily.

But the intermolecular attraction force is stronger in the molecules of coal that's why we cannot break the coal easily.

Hence, This is required answer.