The total water entropy also correlates strongly with the orientational water density in Figure . In particular, the highest entropy contributions are observed for interfaces with a moderately ordered first water layer. For instance, Pd and Ag have the highest entropy contributions ∆γ sl , and they also have a moderately organized water layer. Pt and Rh, on the other hand, have low entropy contributions and highly ordered water layers, while Au has weakly ordered water and modest entropy contributions.