hey guys.........write difference between crystalline and amorphous solid
Answers
Crystals have an orderly arrangement of their constituent particles. In comparison, amorphous solids have no such arrangement. Their particles are randomly organised.
Crystals have a specific geometric shape with definite edges. Amorphous solids have no geometry in their shapes
Crystalline solids have a sharp melting point on which they will definitely melt. An amorphous solid will have a range of temperature over which it will melt, but no definite temperature as such
Crystals have a long order arrangement of their particles. This means the particles will show the same arrangement indefinitely. Amorphous solids have a short order arrangement. Their particles show a lot of variety in their arrangement.
Crystalline solids cleavage (break) along particular points and directions. Amorphous solids cleavage into uneven parts with ragged edges.
Crystals are also known as True Solids, Whereas another name for Amorphous Solids is Super-Cooled Liquids.
Difference between Amprphous Solids and Crystalline Solids
Amprphous Solids
Crystalline Solids
1. Solids that don't have definite geometrical shape. They have characteristic geometrical shape
2. Amorphous solids don't have particular melting point. They melt over a wide range of temperature. T hey have sharp melting point
3. Physical properties of amorphous solids are same in different direction,i.e. amorphous solids are isotropic Physical properties of
crystalline solids are different in different directions. This phenomenon is known as Anisotropy.
4. Amorphous solids are unsymmetrical When crystalline solids are rotated about an axis, their appearance does not change. This shows that thay are symmetrical
5. Amorphous solids don't break at fixed cleavage planes. Crystalline solids cleavage along particular direction at fixed cleavage planes.