1
BITSAT 2020
MCQ (Single Correct Answer)
+3
-1

The enthalpies of combustion of carbon and carbon monoxide in excess of oxygen at 298 K and constant pressure are $$-$$393.5 kJ/mol and $$-$$280.0 kj/mol respectively. The heat of formation of carbon monoxide at constant volume is

A
+ 111.7 kJ/mol
B
$$-$$ 1111.7 kJ/mol
C
$$-$$ 111.7 kJ/mol
D
$$-$$ 11.7 kJ/mol
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