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From the thermochemical reactions, C(g...

From the thermochemical reactions,
`C(grap hite)+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(graph ite) +O_(2)rarr CO_(2)` is :

A

`-393.7`kJ

B

`+393.7`kJ

C

`-172.7`kJ

D

`+172.7`kJ

Text Solution

Verified by Experts

The correct Answer is:
A
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