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State the third law of thermodynamics....

State the third law of thermodynamics.

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(b) (i) (1) The third law of thermodynamics states that the entropy of pure crystalline substance at absolute zero is zero . (2) It can also be stated as it is impossible to lower the temperature of an object to absolute zero in a finite number of steps.
(3) Mathematically, `underset (Trarr0) lim` S=0 for a perfectly ordered crystalline state.
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