The chemical activity in each phase was measured, as summarized in the table below. XB T(C) 300 an 0.02 0.05 0.10 0.02 0.05 0.10 ag 8.398E-04 2.542E-03 6.898E-03 1.345E-03 3.957E-03 1.026E-02 2.386E-01 6.447E-01 1.217E+00 1.651E-01 4.409E-01 8.393E-01 a 2.020E-02 5.048E-02 1.009E-01 2.017E-02 5.040E-02 1.007E-01 400 1. Which of these solutions is closest to being ideal? 2. Which of these solutions is not well described by the regular solution model? (Explain.) 3. Applying the regular solution model to each phase, determine a suitable value for the regular solution mixing parameter (listed as 12 in Porter and Easterling). 4. Using your model, plot do vs Xp and up vs XB for each phase at 300C. Include on you plat the measured values of activity. 5. Plot the Gibbs free energy of mixing for each phase at 300C (3 curves on one plot). 6. How might these chemical activities be measured? Briefly discuss one method for doing this and write a short summary of the method. The chemical activity in each phase was measured, as summarized in the table below. XB T(C) 300 an 0.02 0.05 0.10 0.02 0.05 0.10 ag 8.398E-04 2.542E-03 6.898E-03 1.345E-03 3.957E-03 1.026E-02 2.386E-01 6.447E-01 1.217E+00 1.651E-01 4.409E-01 8.393E-01 a 2.020E-02 5.048E-02 1.009E-01 2.017E-02 5.040E-02 1.007E-01 400 1. Which of these solutions is closest to being ideal? 2. Which of these solutions is not well described by the regular solution model? (Explain.) 3. Applying the regular solution model to each phase, determine a suitable value for the regular solution mixing parameter (listed as 12 in Porter and Easterling). 4. Using your model, plot do vs Xp and up vs XB for each phase at 300C. Include on you plat the measured values of activity. 5. Plot the Gibbs free energy of mixing for each phase at 300C (3 curves on one plot). 6. How might these chemical activities be measured? Briefly discuss one method for doing this and write a short summary of the method