Why the defects of the crystalline solids are called thermodynamic defects?

Explanation

To understand why the defects of crystalline solids are called thermodynamic defects, we can break down the explanation into several steps:

### Step 1: Understanding Perfect Crystals
- A perfect crystal is defined as a solid where all the atoms or ions are arranged in a highly ordered structure without any vacancies or defects. According to the third law of thermodynamics, a perfect crystal can theoretically exist at absolute zero temperature (0 Kelvin).

### Step 2: Temperature and Defects
- As the temperature of a crystalline solid increases from absolute zero, the thermal energy of the particles also increases. This increase in energy allows for more movement and vibration of the atoms or ions within the crystal lattice.

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