Graphite is a soft solid lubricant extremely difficult P to melt. The reason for this anomalous ...

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Graphite is a soft solid lubricant extremely difficult
P to melt. The reason for this anomalous behaviour is

W that graphite
(1) is an allotropic from of carbon.
(2) is a non-crystalline substance.
(3) has carbon atoms arranged in large plated of rings of strongly bonded carbon atoms with weak inter plate bonds.
(4) has molecules of variable molecular masses like polymers.
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