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The heats of combustion of carbon and carbon monoxide are -393.5 and -283.5 kJ mol^-1, respectively.

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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

(a) 676.5 (b) -6765 (c) -110.5 (d) 110.5

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Correct option(c) -110.5

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