Question

I want to know the enthalpy change for this reaction which occurs in a blast furnace:
Fe2O3(s) + 3C(s) --> 2Fe(l) + 3CO(g)

You will need the heat of formation for CO, and ironIIIoxide, and the heatofmelting for iron. I suspect you have some temperature in mind also which this reaction occurs, as it will not likely occur at 25C.

We will be happy to critique your work or thinking.

I have found the heat of formation for CO and Fe2O3, but I cannot find the heat of melting for iron and I'm not really sure where to look. When I have all of the information would you suggest constructing a Hess's cycle to calculate the enthalpy change for the reaction?

You can find the heat of fusion for iron here.
http://en.wikipedia.org/wiki/Iron