4FEs2(s) + 11O2(g) 2FE2O3(g) + 8SO2(g)
The conversion of FeS2(s) to Fe2O3(s) is only 80% complete. If the standard heat of rxn for the rxn is calculated to be -567.4 kJ/g mol FeS2(s) what is the value of Delta Hrxn will you use per kg of FeS2 burned in an energy balance?