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Briefly explain the main differences of heat capacity approaches of solid between Einstein, Debye and classic...

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Physics

Briefly explain the main differences of heat capacity approachesof solid between Einstein, Debye and classic thermodynamicmodel.

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Einstein solid The original theory proposed by Einstein in 1907 has great historical relevance The heat capacity of solids as predicted by the empirical DulongPetit law was required by classical mechanics the specific heat of solids should be independent of temperature But experiments at low temperatures showed that the heat capacity changes going to zero at absolute zero As the temperature goes up the specific heat goes up until it approaches the Dulong and Petit prediction at high temperature The Einstein solid is a model of a solid based on two assumptions Each atom    See Answer
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