data from Example $21\mathrm{.}1-2,$ also calculate the flux ratios $\frac{k_x^0}{k_x^{\text{'}}}$ for $x_{A1}=0\mathrm{.}20$ and $x_{A1}=0\mathrm{.}01.$ Tabulate these ratios for the three values of $x_{A1}$ and plot the ratio versus $x_{A1}.$