alleryStart learning →C(graphite) + O2 → CO2 has ΔH = -393.5 kJ and CO + 1/2 O2 → CO2 has -283.0 kJ. Find ΔH for C + 1/2 O2 → CO.
A+676.5 kJ
B-110.5 kJ
C+110.5 kJ
D-676.5 kJ
Answer & Solution
Correct answer: B. -110.5 kJ
Reverse the CO reaction to +283.0 kJ and add: -393.5 + 283.0 = -110.5 kJ.
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