Crystalline Solids | Amorphous solids | |
---|---|---|
Arrangement | The constituent particles are arranged in a regular order | The constituent particles show disordered arrangement |
Order | Exhibit both long-range and short-range order | Exhibit only short-range order |
Melting Point | Have sharp melting points | Solids melt over a range of temperatures |
Heat of Fusion | Shows a definite heat of fusion | Does not have a definite heat of fusion |
Cleavage Property | The solid substances undergo a clean cleavage | The solids cut irregularly with rough edges |
Physical Property | Show anisotropy in physical property measurements | Physical property measurements are isotropic |
Nature | True solids | Pseudo solids or super cooled liquids |
A fun mnemonic to memorize the differentiation points:
Overeating Created Many New Health Problems for Alice
The first alphabet in the sentence stands for-
Order, Cleavage property, Melting point, Nature, Heat of Fusion, Physical property, and Arrangement.
Crystalline solids here is like an angel displaying positive behaviour for all the properties. They are true solids, regularly arranged, display clean cleavage properties, and exhibit definite heat of fusion and a sharp melting point. But it has one weakness, it is anisotropy in physical property measurements. On the other hand, amorphous solids are quite the opposite but display uniform isotropy.