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Third Law of Thermodynamics
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The concept of Absolute Zero is critical in the Third Law of Thermodynamics.
Absolute zero, 0 Kelvin, or -273.15°C, is a theoretical temperature where particles possess minimal vibrational motion, representing the lower limit of the thermodynamic temperature scale.
Nernst Heat Theorem is related to the Third Law of Thermodynamics.
As the temperature of a system approaches absolute zero, the change in entropy vanishes for any isothermal process. It was an early statement that led to the formulation of the Third Law.
The unattainability principle is a consequence of the Third Law of Thermodynamics.
It states that it is impossible to cool a system to absolute zero in a finite number of operations. This is due to the fact that as temperature decreases, so does the entropy, which must remain positive or zero.
The Third Law of Thermodynamics has important implications for the behavior of systems at low temperatures.
As a system approaches absolute zero, all processes cease and the entropy of the system approaches a minimum value. This makes it impossible to reach absolute zero in a finite number of steps.
The Third Law of Thermodynamics can be stated as:
The entropy of a perfect crystal at absolute zero is exactly equal to zero.
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