c$_{1}$ c 2 0 0 . 01 0 . 02 0 . 03 0 . 04 0 . 05 0 0 . 005 0 . 01 0 . 015 0 . 02 0 . 025 N$_{2}$ I+N$_{2}$ I FMT (a) c$_{1}$ c 2 0 0 . 01 0 . 02 0 . 03 0 . 04 0 . 05 0 0 . 005 0 . 01 0 . 015 0 . 02 0 . 025 N$_{2}$ I I+N$_{2}$ Onsager (b) x p ∗ 0 0 . 2 0 . 4 0 . 6 0 . 8 1 0 0 . 01 0 . 02 0 . 03 0 . 04 0 . 05 0 . 06 0 . 07 0 . 08 0 . 09 0 . 1 I+N$_{2}$ I N$_{2}$ Onsager (d) x p ∗ 0 0 . 2 0 . 4 0 . 6 0 . 8 1 0 0 . 01 0 . 02 0 . 03 0 . 04 0 . 05 0 . 06 0 . 07 0 . 08 0 . 09 0 . 1 I+N$_{2}$ I N$_{2}$ FMT (c) FIG. 7: Phase diagrams for λ = 5. The notation is the same as in Fig. 4. We focus on the re-entrant behaviour in this figure. The general trend of the re-entrant bend moving to lower composition continues here once again. 37