Multiple choice

Name the defects noticed when a solid is heated

  1. Frenkel Defect

  2. Interstitial Defect

  3. Schottky Defect

  4. Vacancy Defect
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D Correct answer
Explanation

Vacancy defects are often referred to as thermodynamic defects because they are created when a crystal is heated, causing some lattice sites to become vacant. Frenkel and Schottky defects are stoichiometric defects, but the term 'vacancy defect' specifically describes the loss of atoms due to thermal energy.

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