# Diffusion between phases based on chemical potential

How is the concept of diagram(b) different from that of (e) and (d) from (f)?Someone told me in one of my earlier posts (Why will A atoms diffuse from β phase to α phase and B atoms from α phase to β phase?) that he is used to see graphs with two minimia but somewhere where we had two phase separately named as $$G^{\alpha}$$ and $$G^{\beta}$$ vs the composition curve he seemed something that he saw for the very first time. Please help me to differentiate the two of them and also answer the question that I have in this post.

• (a)(b) is normal diffusion producing one phase of A and B mixed (c)(d) is phase separation. Look at the way the arrows point. – porphyrin Jul 20 '19 at 16:35
• @porphyrin How are we so sure that this is not a single phase?And how did u conclude the fact of diffusion and phase separation. – user586228 Jul 20 '19 at 17:01
• – Jon Custer Jul 20 '19 at 18:03
• @JonCuster Are you saying that (d) and (f) is the same thing? – user586228 Jul 20 '19 at 18:35
• I have no idea what they are trying to represent in (f). But, the stable configuration would be similar for (d) and (f), yes. – Jon Custer Jul 20 '19 at 19:06