An iron blast furnace operates as shown in the diagram below. Assume there is not iron lost to the slag and that air entering the furnace is dry. Determine;

a) the amount of ore required,

b) the amount of CaO in the slag, and

c) the volume of H₂O in the exhaust.

Inputs	Outputs
500 kg flux 89.2% CaCO3 7.9% SiO2 4.0% H2O	1000 kg pig iron 94.1% Fe 4.7% C 1.2% Si
X kg Iron ore 81% Fe2O3 11% SiO2 8% H2O	W m3 exhaust CO CO2 N2 H2O
Y m3 Air 21% O3 7.9% N2	Z kg slag SiO2 CaO
1000 kg coke 90.2% C 5.8% SiO2 4.0% H2O