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Identify the correct statement regarding entropy

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At 0°C, the entropy of a perfectly crystalline substance is taken to be zero.

At absolute zero of temperature, the entropy of all crystalline substances is taken to be zero.

At absolute zero of temperature, the entropy of perfectly crystalline substance is +ve.

At absolute zero of temperature, the entropy of perfectly crystalline substance is taken to be zero.

answer is B.

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Detailed Solution

According to third law of thermodynamics at absolute temperature the entropy of perfectly or pure crystalline substance is zero

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