w w Although the Ellingham diagram is used to determine many thermodynamic properties of metals, it also shows under which conditions metals can be reduced. Accordingly, using the Ellingham diagram, determine the reducibility of MnO to Mn with carbon, the Gibbs free energy and the equilibrium oxygen pressures for Mn by writing the necessary reactions at a) 1500 C b) 800 C. w (reduction reaction; 2MnO+2C Mn+2co w 1 w w Although the Ellingham diagram is used to determine many thermodynamic properties of metals, it also shows under which conditions metals can be reduced. Accordingly, using the Ellingham diagram, determine the reducibility of MnO to Mn with carbon, the Gibbs free energy and the equilibrium oxygen pressures for Mn by writing the necessary reactions at a) 1500 C b) 800 C. w (reduction reaction; 2MnO+2C Mn+2co w 1