Two elements A and B are mixed to form a complete solid solution at high temperatures and a miscibility gap at lower temperatures. Thermodynamic data of this system indicate that the value of Wm(or 12, as mentioned in the textbook) is 28,600 J/mol. Use Excel or MATLAB to answer the following questions: (d) Use the common tangent rule to construct the A-B phase diagram (T vs XB) according to the information that you obtained in (C) - Hint: fit the final data using the Polynomial fitting, order 2 (Excel). Two elements A and B are mixed to form a complete solid solution at high temperatures and a miscibility gap at lower temperatures. Thermodynamic data of this system indicate that the value of Wm(or 12, as mentioned in the textbook) is 28,600 J/mol. Use Excel or MATLAB to answer the following questions: (d) Use the common tangent rule to construct the A-B phase diagram (T vs XB) according to the information that you obtained in (C) - Hint: fit the final data using the Polynomial fitting, order 2 (Excel)