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CBSE Class 12-science Answered

Solid state
Asked by angkit | 13 May, 2010, 08:57: PM
Expert Answer

AgBr Frenkel pairs is that the interstitial Agi+ are exceptionally mobile. The formation energy of the Frenkel pair is low at 1.16 eV, and the migration activation energy is unusually low at 0.05 eV (compare to NaCl: 2.18 eV for the formation of a Schottky pair and 0.75 eV for cationic migration). These low energies result in large defect concentrations, which can reach near 1% near the melting point.

Answered by | 19 May, 2010, 12:25: PM
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