The entropy of perfectly crystalline solid at absolute zero is______.

positive

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negative

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zero

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not definite

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Solution

The correct option is C zero
The entropy of a system at absolute zero is typically zero, and in all cases is determined only by the number of different ground states it has. Specifically, the entropy of a pure crystalline substance at absolute zero temperature is zero

Hence C is correct

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Similar questions

Assertion(A): At absolute zero the entropy of a perfectly crystalline substance is taken as zero

Reason(R): At zero degree absolute the constituent particles become completely motionless

Entropy of a perfect crystalline solid at absolute zero is:

According to third law of Thermodynamics, "At absolute zero, the entropy of a perfectly crystalline substance is taken as zero”.

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