1.

C (diamond) +O_(2)(g)rarrCO_(2)(g), DeltaH-395 kJC (graphite) +O_(2)(g)rarrCO_(2)(g), DeltaH-393.5 kJ From the data, the DeltaH when diamond is formed from graphite, is

Answer»

`-1.5 kJ`
`+1.5 kJ`
`+3.0 kJ`
`-3.0 kJ`

SOLUTION :Aim: `C_(("GRAPHITE"))rarrC_(("DIAMOND")), eq. (ii)-(i)`GIVES the result.


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