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Q.

Identify the correct statement regarding entropy

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a

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

b

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

c

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

d

At absolute zero of temperature, the entropy of all crystalline substances 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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