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From the thermochemical reactions, C(gra...

From the thermochemical reactions, C(graphite)`+1//2O_(2)rarr CO , Delta H =-110.5`KJ
`CO+1//2O_(2)rarr CO_(2),Delta H=-283.2` KJ the heat of reaction of C(graphite) `+O_(2)rarr CO_(2)` is :

A

`-393.7`kJ

B

`+393.7`kJ

C

`-172.7`kJ

D

`+172.7`kJ

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The correct Answer is:
A
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TARGET PUBLICATION-CHEMICAL THERMODYNAMICS AND ENERGETICS -COMPETITIVE THINKING
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