Give a detailed account of Nernst Heat Theorem.
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Answer:
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Explanation:
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The significance of the Nernst heat theorem is that it was later used by Max Planck to give the third law of thermodynamics, which is that the entropy of all pure, perfectly crystalline homogeneous materials in complete internal equilibrium is 0 at absolute zero.
It is impossible to reduce the temperature of a material body to the absolute zero of temperature in a finite number of operations. This is the Third Law of Thermodynamics, and it is an inevitable consequence of Planck's extension of Nernst's Heat Theorem.
In 1906, German chemist Walther Nernst formulated the heat theorem, which states that as a perfect crystal approaches the absolute zero point of 0 kelvin (-273.15°C), the system's entropy also goes to zero.
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