Explain on brief Schottky defect.

Schottky defect is-

In the Schottky defect:

Explain the Schottky defects in stoichiometric crystals.

Explain Scottky defect.

Explan how Schottky defect occurs.

Explain Schottky defect in Stoichiometric crystals. What are the consequences of Schottky and Frenkel defects in crystals ?

(a) Define the terms crystalline and amorphous solids. (b) Explain Schottky defect with an example.

(a) Define the terms crystalline and amorphous solids. (b) Explain Schottky defect with an example.

Statement : Schottky defect is generally shown by the compounds with high co - ordination no. Explanation : Equal no. of cations and anions are missing from the lattice sites in Schottky defect.

The number of Schottky defects (n) present in an ionic compound containing N ions at temperature T is given by n = Ne^(-E//2KT) , where E is the energy required to create n Schottky defects and K is the Boltzmann constant, If the mole fraction of Schottky defect in NaCl crystal at 2900 K is X , then calculate -ln(x) , Given: DeltaH of Schottky defect = 2 eV and K = 1.38 xx 10^(-23) J K^(-1) 1 eV = 1.608 xx 10^(-19) J