Prob. 1: Iron oxide is reduced to iron in an electric furnace in accordance with the following reaction: 4Fe2O3+9C=8Fe+6CO+3CO2 Required: (1) the number of kgs. of Fe2O3 which must be reduced to make one metric ton of Fe. (2) the number of Kgs. of carbon required. (3) the number of cubic meters of CO and of CO2 produced at standard conditions. (4) the number of Kgs. of CO and of CO2 produced