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Chapter 12: 12.105P (page 497)

Distinguish between isotropic and anisotropic substances. To which category do liquid crystals belong?

Short Answer

Expert verified

Liquid crystal flowslike a liquid and has crystalline structure.

Step by step solution

01

Step 1:Definition

Liquid crystal is the state of matter having properties between crystalline solid and liquid.

Depending upon the structure, direction, chemical bonding etc we can easily differentiate the material.

CHARACTERISTICS	ISOTROPIC	ANISOTROPIC
LATTICE STRUCTURE	No regular	Regular
DIRECTION	Independent	Dependent
CHEMICAL BONDING	Consistent	Uncertain
REFRACTIVE INDEX	Only one	More than one
USES	Lenses	Polarizers
EXAMPLE	Glass	Wood

02

Conclusion

Liquid crystal belongs to theanisotropic substance because its alignment depends upon direction.

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Most popular questions from this chapter

Polonium, the Period 6 member of Group 6A (16), is a rare radioactive metal that is the only element with a crystal structure based on the simple cubic unit cell. If its density is $9.142 g / {cm}^{3}$ , calculate an approximate atomic radius for polonium.

The phase diagram for substance A has a solid-liquid line with a positive slope, and that for substance B has a solid-liquid line with a negative slope. What macroscopic property can distinguish A from B?

Rank the following in order of decreasing surface tension at a given temperature, and explain your ranking: (a) ${CH}_{3} OH$ (b) ${CH}_{3} {CH}_{3}$ (c) ${CH}_{2} O$

Why is the average molar mass of a polymer sample different from the molar mass of an individual chain?

Which substance has the higher boiling point? Explain.

(a) LiCl or HCl (b) ${NH}_{3}$ or data-custom-editor="chemistry" ${PH}_{3}$ (c) Xe ordata-custom-editor="chemistry" $I_{2}$

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