Monoclinic Sulfur: Heat Capacity Anomaly at 198{degrees}K Caused by Disordering of the Crystal Structure.
The entropy of disorder of the idealized crystal structure of monoclinic sulfur at high temperatures is equal to the extra entropy change in the lambda-type (second order transformation type) heat capacity anomaly found at 198 degrees K. The extrapolated entropy is zero at 0 degrees K. The partially disordered crystal structure gradually becomes ordered as the temperature is lowered.
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