Spectral measurements of the specific heat capacities

The specific heat capacities are represented by functions derived from statistical models - e.g. for solids [SOU 15a], the Einstein function  

These relations respectively involve either the Einstein temperature hv 

These temperatures are determined on the basis of the vibration frequencies of the bonds calculated on the basis of the spectral data. Remember that the molar specific heat capacity of a solid tends toward zero as its temperature tends toward absolute zero (with the entropy tending toward a constant). 

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