Glass is (a) Super-cooled liquid (b) Amorphous (c) Crystalline solid (d) Anisotropic substance?

Question

Answer

Super cooled

Answer

Is Glass a Super-Cooled Liquid, Amorphous, Crystalline Solid or Anisotropic Substance?

Glass is a unique material that has been used for centuries. It is a hard, brittle, transparent or translucent substance made by heating a mixture of silica, soda, and lime to a high temperature until it melts and then cooling it rapidly. There are various theories and opinions on whether glass is a super-cooled liquid, amorphous, crystalline solid, or anisotropic substance. Let's explore each one in detail.

Super-Cooled Liquid

One of the most popular theories about glass is that it is a super-cooled liquid. This theory suggests that glass does not have a true solid-state but rather a highly viscous liquid state. The argument behind this theory is that glass lacks a long-range order of atoms. However, this theory has been debunked by many scientists who argue that glass has a well-defined atomic structure and is, in fact, an amorphous solid.

Amorphous

Glass is classified as an amorphous solid. This means that glass lacks a long-range order of atoms and molecules that characterize crystalline solids. Amorphous solids have a disordered structure, which means that their atoms are arranged randomly and do not form a repeating pattern. Glass has a random arrangement of atoms that is characteristic of amorphous solids.

Crystalline Solid

Glass is not a crystalline solid. Crystalline solids have a well-defined structure and a repeating pattern of atoms or molecules. Glass does not have a repeating pattern, and therefore, it cannot be classified as a crystalline solid.

Anisotropic Substance

Glass is not an anisotropic substance. Anisotropy refers to the property of a material that exhibits different physical properties in different directions. Glass has isotropic properties, which means that its properties are the same in all directions. For example, the refractive index of glass is the same in all directions, making it an isotropic substance.

Conclusion

In conclusion, glass is classified as an amorphous solid. It does not have a long-range order of atoms like crystalline solids, and its properties are isotropic, making it different from anisotropic substances. Therefore, the theory that glass is a super-cooled liquid is incorrect, and glass is, in fact, an amorphous solid.

Answer

A glass is an amorphous solid up obtained by cooling a liquid rapidly and that its basic units are frozen in random positions before they can assume and ordered crystalline arrangement. A glass is sometimes called pseudo solid or supercooled liquid because like a liquid it shows a tendency to flow though very slowly..

Answer

A)

Answer

A

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