Published by:
CGP EDU Academic Team
Published on: August 13, 2026
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 :
Text Solution
Verified by ExpertsThe correct answer is:
C
C (s) + O 2 (g) → CO 2 (g) ; Δ H = – 393.5 kJ/mol.
CO (g) + 
O 2 (g) → CO 2 (g) ; Δ H = – 283.5 kJ/mol.
C (s) + 
O 2 (g) → CO (g) ; Δ H = – 393.5 + 283.5 kJ/mol = –110 kJ/mol.
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