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Given, C graphite +(1)/(2)O(2)=CO, Delta...

Given, C graphite `+(1)/(2)O_(2)=CO, DeltaH = -10.5` kj
…(i)
…(ii) `CO+(1)/(2)O_(2)=CO_(2),DeltaH = 283.2` kj
The heat of reaction of C graphite `+ O_(2) = CO_(2)` is

A

`+ 172.7 kJ`

B

`-393.7 kJ`

C

`-172.7 kJ`

D

`+393.7 kJ`

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The correct Answer is:
B
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