Give reasons :
Entropy of a perfectly crystalline substance is less than that of its imperfect crystal.

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Solution

A perfect crystalline substance is free from defects. therefore then is hardly any movement of the partides and the entropy is less as compered to imperfect crystalline solid which has certain defects.

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Similar questions

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

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

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