How nematic, smectic and cholesteric liquid crystals are similar and different has to be described. Concept Introduction: Liquid crystal exhibits both the properties of liquids (particles are not arranged and are free to move in all directions) and solids (articles are arranged regularly). Liquid crystals are anisotropic, that is it shows different properties in different directions based on the orientation of particles in it. Isotropic have no orderly arrangement and molecules are free to move in all direction whereas, anisotropic have orderly arrangement of particles and its property differ with the direction of orientation. Liquid crystal can be classified into different types based on their behaviour and physical structure, namely nematic, smectic and cholesteric.

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Chapter 24, Problem 24.13QP

Interpretation Introduction

Interpretation: How nematic, smectic and cholesteric liquid crystals are similar and different has to be described.

Concept Introduction:

Liquid crystal exhibits both the properties of liquids (particles are not arranged and are free to move in all directions) and solids (articles are arranged regularly).

Liquid crystals are anisotropic, that is it shows different properties in different directions based on the orientation of particles in it.

Isotropic have no orderly arrangement and molecules are free to move in all direction whereas, anisotropic have orderly arrangement of particles and its property differ with the direction of orientation.

Liquid crystal can be classified into different types based on their behaviour and physical structure, namely nematic, smectic and cholesteric.

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