The heats of combustion of carbon and ca...

The heats of combustion of carbon and carbon monoxide are -393.5 and -283.5 kJ `"mol"^(-1)`, respectively. The heat of formation (in kJ) of carbon monoxide per mole is :

668 kJ

- 668 kJ

112 kJ

- 112 kJ.

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The correct Answer is:

112 kJ

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