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Given that: i. C("graphite") +O(2)(g) ...

Given that:
i. `C("graphite") +O_(2)(g) rarr CO_(2)(g), DeltaH =- 393.7 kJ`
ii. `C("diamond") rarr C("graphite"), DeltaH =- 2.1 kJ`
a. Calculate `DeltaH` for buring of diamond of `CO_(2)`.
b. Calculate the quantity of graphite that must be burnt to evolve `5000 kJ` of heta.

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