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5. a. Would you expect Frenkel defects for anions to exist in ionic ceramics in relatively large concentrations? Why or why not? b. If the energy for Frenkel defect formation in ZnO is 2.51 eV, calculate the number of Frenkel defects per cubic meter at 1000°C. Take the density of ZnO at 1000°C as 5.55 g/cm. The atomic weight of zinc is 65.41 g/mol and that of oxygen is 16.00 g/mol.

5. a. Would you expect Frenkel defects for anions to exist in ionic ceramics in relatively large concentrations? Why or why not? b. If the energy for Frenkel defect formation in ZnO is 2.51 eV, calculate the number of Frenkel defects per cubic meter at 1000°C. Take the density of ZnO at 1000°C as 5.55 g/cm. The atomic weight of zinc is 65.41 g/mol and that of oxygen is 16.00 g/mol.

Principles of Modern Chemistry
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter22: Inorganic Materials
Section: Chapter Questions
Problem 13P
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5. a. Would you expect Frenkel defects for anions to exist in ionic ceramics in relatively large concentrations? Why or why not? b. If the energy for Frenkel defect formation in Zno is 2.51 eV, calculate the number of Frenkel defects per cubic meter at 1000°C. Take the density of ZnO at 1000°C as 5.55 g/cm. The atomic weight of zinc is 65.41 g/mol and that of oxygen is 16.00 g/mol.
Transcribed Image Text:5. a. Would you expect Frenkel defects for anions to exist in ionic ceramics in relatively large concentrations? Why or why not? b. If the energy for Frenkel defect formation in Zno is 2.51 eV, calculate the number of Frenkel defects per cubic meter at 1000°C. Take the density of ZnO at 1000°C as 5.55 g/cm. The atomic weight of zinc is 65.41 g/mol and that of oxygen is 16.00 g/mol.
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