上游充通大粤 SHANGHAI JIAO TONG UNIVERSITY Gibbs triangle Lines of constant A content are parallel to the line connecting the points representing pure B and pure C All the combinations of D and E fall on the line between two The lever rule applied to these system Xremains constant Line of constant A content 个 D D A G X组→ B→ Figure 9.20 Example of the Gibbs triangle. Figure 9.19 Ternary diagram axes:dilute 13 solutions.xA remains constant 13