- Question 3 12 Marks Use The Ellingham Diagram For Oxides To Answer The Following Questions A Calculate The Equilibri 1 (47.82 KiB) Viewed 55 times
Question 3 (12 Marks) Use the Ellingham Diagram for oxides to answer the following questions. a) Calculate the equilibrium constant for the reaction Mn + Mg0 = Mg + MnO at 400°C b) Is it possible for CaO to be reduced by Si at 700°C? c) What is the entropy change of the reaction Si +O2 = SiO2 between temperatures 100°C and 1500°C? d) Is it possible for V2O3 to oxidize Mg? e) Calculate the partial oxygen pressure for 2Fe + O2 = 2FeO at 1800°C f) Prove your answer in (b) g) What is the enthalpy value of the reaction 2Pd + O2 = 2PdO? h) When will Na2O be reduced by chrome?