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The enthalpies of combustion of diamond and graphite are - 395.4 kJ and - 393.5 kJ respectively calculate the enthalpy of transformation from diamond to graphite.
A. `-0.5kcal`
B. `+0.5kcal`
C. `1kcal`
D. `-1kcal`

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Best answer
Correct Answer - B
`DeltaH=DeltaH_("comb.(diamond)")-DeltaH_("comb.(graphite)")`

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