How do you approximate between the Cp of a gas and a solid?

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To estimate the heat capacity (Cp) of solid benzoyl peroxide (BPO), the Dulong and Petit law can be applied, which states that the molar heat capacity of a solid element is approximately 3R (where R is the gas constant). The user seeks a reliable method to verify their calculated Cp value for solid BPO, as literature values are scarce. They express uncertainty about where to find accurate reference data for comparison. The discussion emphasizes the need for reliable literature sources to validate thermal properties of chemical compounds. Accurate Cp values are essential for various applications in chemistry and material science.
Will26040
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I have the Cp of Benzoyl peroxide (BPO) in gas form (454.39 J/molK). What approximation could I make to find the Cp of solid BPO?
I have the Cp of Benzoyl peroxide (BPO) in gas form (454.39 J/molK). What approximation could I make to find the Cp of solid BPO as I cannot find this info online? thanks
 
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Chestermiller said:
Have you heard of the Dulong and Petit law?
Also, https://pubs.acs.org/doi/10.1021/i160013a003
Thanks! do you have any idea on how I would check the accuracy of my obtained value? I am not sure where to find a literature value
 

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