12 gram of carbon reacted with oxygen to produce CO and CO2 at 25 degree and at constant pressure.75Kcal heat was liberated and no carbonreacted.calculate the mass of oxygen which reacted.delata Hf(CO)=-24Kcal/mol and deltaHf(C))=-24Kcal

Probably your question is not complet. So plz check it and post it again.
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