Question

Difference between Amorphous and Crystalline Solids?​

Answer 1

Answer:

Crystalline solids have well-defined edges and faces, diffract x-rays, and tend to have sharp melting points. In contrast, amorphous solids have irregular or curved surfaces, do not give well-resolved x-ray diffraction patterns, and melt over a wide range of temperatures.

Explanation:

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Answer 2

Some points on Crystalline solid are as follows:-

1. Shape:- Definite characteristic geometrical shape.

2. Melting point:- Melt at a sharp and characteristic temperature

3. Cleavage property:- When these types of solid are cut with a sharp edged tool then they will split into two pieces & also some newly generated surfaces are found which are plain & are very smooth.

4. Heat of fusion:- They are having a definite & heat of fusion is characteristic.

5. Anisotropic nature:- Anisotropic in nature (direction dependent)

6. Nature:- They are true solids

7. Arangement of particles:- Long range order

8. Examples:- NaCl, Metals, Diamond

Some points on amorphous solid are as follows:-

1. Shape:- Irregular shape

2. Melting Point:- Gradually soften over a range of temperature

3. Cleavage property:- When cut with a sharp edged tool, they cut into two pieces with irregular surfaces.

4. Heat of fusion:- They do not have definite heat of fusion.

5. Anisotropic nature:- Isotropic in nature (direction independent).

6. Nature:- Pseudo solids or super cooled liquids

7. Arrangement of particles:- Only short range order.

8. Examples:- Rubber, Plastics etc.