Question

Give a reason as to why the melting point of graphite is lower than Diamond

Answer 1

Answer:

In diamond each carbon atom is linked to four other carbon atoms by covalent bonds. So it seems paradoxical that diamond would have a lower melting point. There are Van der Waals forces between the layers of graphite but these are relatively weak in comparison to a covalent bond.

Explanation:

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Answer 2

Answer:

In graphite, each carbon atom is linked to three other carbon atoms by covalent bonds. In diamond each carbon atom is linked to four other carbon atoms by covalent bonds. So it seems paradoxical that diamondwould have a lower melting point. ... However, the layers of graphite contain delocalized electrons.