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Q: Why do diamond and graphite evolve different amounts of heat on combustion?
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Why do diamond and graphite the two allotropic forms of carbon evolve different amounts of heat on combustion?

The enthalpies of combustion are practically identical.


Why is graphite softer than diamond?

The crystalline structure of graphite and diamond are very different.


Why are diamond and graphite polymorphic?

Diamond and Graphite are different states of the same element, Carbon.


How are diamonds and graphites different and the same?

Different is only the arrangement of atoms in diamond or graphite. Diamond and graphite are allotropic forms of carbon.


Is graphite in diamonds?

No. Both graphite and diamond are allotropes of carbon. They have different molecular structures.


Diamond and graphite are both forms of carbon.Diamond is hard Graphite is soft and flaky How could these different properties be explained?

Diamond and graphite have different structures which account for their different properties. Graphite is arranged into sheets which are easily removed. Diamond, on the other hand, is a network solid that has very strong bonds and intermolecular forces holding it together.


Which has the less density graphite or diamond?

Graphite is less dense than diamond, due to the differences in crystal structure.


Are diamond and graphite isotopes of carbon?

Yes, diamond and graphite are isotopes of carbon as they are both entirely made of carbon. However they have very different structures resulting in their different properties.


Are diamond and graphite different structural forms of carbon?

yes


Does graphite make diamonds?

No. Graphite and diamond are both allotropes of carbon, each with a different and distinct molecular structure.


How are diamond and graphite made the same?

They are not made the same- but they come from the same element- carbon. However, carbon can take different crystal shapes. One of those is graphite, a very different one is diamond.


Do Graphite and diamonds have the same chemical compositions and different crystalline structures?

Both graphite and diamond are composed of the element carbon, but have different crystalline structures.