This question is from the course MSE 342- Materials Processing 1 of Material Science and Engineering

Consider the following reactions at 900 K: M S (s) + 2 O2(g) M SO4(s) (1) M O (s) + SO2(g) + 1/2 O2(g) M SO4 (2) M S (s) + 3/2 O2(g) M O (s) + SO2(g) (3) M S (s) + O2(g) M (s) + SO2(g) (4) M (s) + 1/2 O2(g) M O (s) (5) (6) 1. For the system written, what diagram would you construct at 900C that would provide useful information about the processing of the metal from the sulfides and the oxides? Make sure to define all variables. 2. What do the lines on the diagram represent? 3. What would be the maximum number of phases that can be present at equilibrium in this system assuming the temperature and total pressure is fixed? 4. On an appropriate logarithmic plot, let the horizontal axis varies from -10 to 0 and the vertical axis vary from -10 to +5. There are two triple points in this system, namely (-5, 0) for the MO-MS-MSO4triple point and (-9, -6) for the M - MO - MS triple point in the logarithmic plot. Construct the precise diagram that you defined in part (1.) of this problem. Show all work on how you have constructed this diagram and label all axes and quantities.