Question

What is the difference between crystalline and amorphous solids?

Answer 1

CRYSTALLINE SOLIDS

1. They have long range order.
2. They have definite melting point.
3. They have definite heat of fusion.
4. They are rigid and incompressible.
5. They possess symmetry.

AMORPHOUS SOLIDS

1. They have short range order.
2. They do not have definite melting point.
3. They do not have definite heat of fusion.
4. They cannot be compressed to any appreciablr event.
5. They possess no symmetry.

Answer 2

Hey !!

CRYSTALLINE SOLIDS

• Definite characteristics and geometrical shape.
• Melt at a sharp and characteristic temperature.
• When cut with a sharp edged tool, they split into two pieces and the newly generated surfaces are plain and smooth.
• They have a definite and characteristic heat of fusion.
• Anisotropic in nature.
• True solids.
• Long range order.

AMORPHOUS SOLIDS

• Irregular shape.
• Gradually soften over a range of temperature.
• When cut with a sharp edged tool, they cut into two pieces with irregular surfaces.
• They do not have a definite heat of fusion.
• Isotropic in nature.
• Pseudo solids or super cooled liquids.
• Only short range order.

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