difference between Crystalline and non-crystallin
Answers
Explanation:
Crystalline solids:
In crystalline solids the particles are arranged in a 3 dimensional order. The particles have equal intermolecular forces. They have sharp melting point and are anisotropic. They are called true solids. Example: Benzoic acid, Diamond.
Application of diamond:
It is widely used in making beautiful jewellery
Amorphous solids:
Amorphous means shapeless. This word is derived from Greek. It has irregular arrangement of solid particles. The intermolecular forces are not equal. Also, the distance between particles varies. They have undefined geometric shape. They are also called supercooled liquids.They are isotropic. Example: Naphthalene, glass
Application of glass:
It is widely used in construction of building
It is also used for packaging cosmetics like cosmetics box and packing of food like food jar
Answer:
Crystaline solids tend to have high and distinct melting points. Amorphous solids do not have sharp melting points. The external forms of the crystals tend to have regularity when they are formed.
Explanation:
Amorphous solids
i. They have an irregular shape.
ii. They have only short-range order in the arrangement of constituent particles.
iii. They gradually melt and soften over a range of temperature.
iv. When cut with a sharp-edged tool, they cut into two pieces with irregular shapes.
v. They do not have definite heat of fusion.
vi. They are isotropic in nature. They are anisotropic in nature.
vii. They are pseudo solids or super-cooled liquids.
Crystalline solids
i. They have a definite characteristic geometrical shape.
ii.They have long-range order in the arrangement of constituent particles
iii.They have sharp and characteristic melting points.
iv.When cut with a sharp-edged tool, they split into two pieces with plain and smooth newly-generated surfaces.
v.They have definite and characteristic heat of fusion.
vi.They are anisotropic in nature.
vii.They are true solids.
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