Graphite molar entropies

C14-0135. S ° of graphite is 3 times larger than S ° of diamond. Explain why this is so. (You may need to review the structures and properties of graphite and diamond in Section 11-.) Buckminsterfullerene is a solid that consists of individual molecules with formula Cgo. Is the molar entropy of buckminsterfullerene larger or smaller than that of graphite How about the entropy per gram Explain. 

Relative Standard Entropies Allotropes As mentioned previously, some elements can exist in two or more forms—called allotropes— in the same state of matter. For example, the allotropes of carbon include diamond and graphite— both solid forms of carbon. Since the arrangement of atoms within these forms is different, their standard molar entropies are different ... 

Graphite and diamond are both forms of carbon. Their standard molar entropies are fraphite = 5-70 J mol-, = 2.40 J K-1 mol-1... 

Suggest why the standard molar entropy of graphite is greater than that of diamond. 

TABLE 12.2 Values of molar enthalpies and entropies of formation of sulfuric acid-graphite intercalation compounds according to the reaction [139] ... 

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