(4) (a) Calculate the enthalpy change (in kJ) for the reaction using these thermochemical equations. (Show all workings) 1. 3Fe2O3(s) + CO(g) 2Fe3O4(s) + CO2(g) =-46.4 KJ ∆H 2. FeO(s) + CO(g) Fe(s) + CO2(g) = +9.0 KJ ∆H 3. + CO(g) 3FeO(g) + CO2(g) = -41.0KJ ∆H (1) (b) Would you expect to calculate the same enthalpy change using Bond Energy data? Explain. (1) (c) Draw a fully labelled enthalpy diagram for the overall reaction.
(4) (a) Calculate the enthalpy change (in kJ) for the reaction using these thermochemical equations. (Show all workings) 1. 3Fe2O3(s) + CO(g) 2Fe3O4(s) + CO2(g) ∆H =-46.4 KJ 2. FeO(s) + CO(g) Fe(s) + CO2(g) ∆H = +9.0 KJ 3. + CO(g) 3FeO(g) + CO2(g) ∆H = -41.0KJ (1) (b) Would you expect to calculate the same enthalpy change using Bond Energy data? Explain. (1) (c) Draw a fully labelled enthalpy diagram for the overall reaction.
chemistry_3202_-_midterm_2012-13.docx