Question

Distinguish between crystalline solid and amorphous solid.

Answer 1

Hint: There are mainly three states of matter: Solid, liquid and gases. The solid state of matter is divided into two forms, first is amorphous and second is crystalline for. Both the amorphous solid and crystalline solid differ in the arrangement of particles in the space.

Complete answer:
Crystalline solid:
(i) In crystalline solids the arrangement of the particles are in three dimensional order. This means that the particles are arranged in a regular and definite geometry.
(ii) The particles of the crystalline solid arranged in the three dimensional space have similar intermolecular forces between them.
(iii) The crystalline solids have a very sharp melting point.
(iv) The crystalline solids are anisotropic in nature.
(v) The crystalline solid is known as the true solid.
(vi) Examples of crystalline solid are diamond and benzoic acid.
(vii) The crystalline solids are used in making ornaments.
Amorphous solids:
(i) In amorphous solid, the arrangements of the solid particles are irregular. They do not have proper shape.
(ii) In amorphous solid, the intermolecular forces between them are not the same.
(iii) The melting point of the amorphous solid varies in a range.
(iv) The amorphous solid is also known as super cooled liquid.
(v) The amorphous solid is isotropic in nature.
(vi) Examples of amorphous solid are glass, naphthalene.
(vi) It is widely used in the construction process of buildings.

Note:
The crystalline solid has definite heat of fusion but the amorphous solid has indefinite heat of fusion. The crystalline solid needs a very high temperature to break the intermolecular forces.