Activities in solution can often be correlated by the Margules equations ln gamma 1 x 2 2 left A 12 2 left(A 21 A 12 ight) x 1 ight quad ln gamma 2 x 1 2 left A 21 2 left(A 12 A 21 ight) x 2 ight For 2,4 dimethylpentane (1) and benzene (2), the coefficients $A 12 $ and $A 21 $ are 1 96 and 1 48 res...

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Activities in solution can often be correlated by the Margules equations. [ln gamma_{1}=x_{2}^{2}left[A_{12}+2left(A_{21}-A_{12} ight) x_{1} ight] quad

Question:

Activities in solution can often be correlated by the Margules equations.

\[\ln \gamma_{1}=x_{2}^{2}\left[A_{12}+2\left(A_{21}-A_{12}\right) x_{1}\right] \quad \ln \gamma_{2}=x_{1}^{2}\left[A_{21}+2\left(A_{12}-A_{21}\right) x_{2}\right]\]

For 2,4-dimethylpentane (1) and benzene (2), the coefficients $A_{12}$ and $A_{21}$ are 1.96 and 1.48 respectively. Plot how $D_{i j}$ will depend upon composition for this binary system.