- #1
Specter
Homework Statement
Using Hess's law, calculate the ΔH value for the following reaction:
FeO(s)CO(g)→Fe(s)+CO2(g)
Use these three reactions:
1. Fe2O3(s)+3CO(g)→2Fe3O4(s)+CO2(g) ΔH= -25.0 kJ
2. 3Fe2O3(s)+CO(g)→2Fe3O4(s)+CO2(g) ΔH= -47.0 kJ
3. Fe3O4(s)+CO(g)→3FeO(s)+CO2
ΔH= +38.0 kJ
Homework Equations
The Attempt at a Solution
This is what I have done so far:
Reversed reaction 3
3FeO(s)+CO2→Fe3O4(s)+CO(g) ΔH = -38.0 kJ
I've tried some other things but each time I get the incorrect answer. The examples that I was shown were way easier than this.
I'm not really sure what to do next. I reversed reaction 3 to get FeO on the left side. Any help on the steps I should take to complete this would be great... I find this question very confusing.