Question

What are the consequences of frenkel defect and scotty defect?

Answer 1

Consequences of Schottky defect :-

a) As the number of ions decreases as a result of this defect, the mass decreases whereas the volume remains the same. Hence density of the solid decreases.

b) The crystal begins to conduct electricity to a small extent by ionic mechanism.

c) The presence of too many voids lowers lattice energy and the stability of the crystal.

Consequences of Frenkel defect :-

a) As no ions are missing from the crystal lattice as a whole, therefore density of the solid remains the same.

b) The closeness of like charges tends to increases the dielectric constant of the crystal.

c) The crystal conducts electricity to a small extent by ionic mechanism.