. With this definition of the chemical potential of the proton-electron pair, it is possible to evaluate, e.g., the surface morphology or stability of alloys at different applied potentials. in a large discrepancy. However, the relative enthalpy differences between the adsorbates, i.e. the reaction enthalpies, which are ultimately the quantity that matters in microkinetic models, are identical. This is easily seen by setting the starting point in the enthalpy diagram to 0, which results in the collapse of the three different profiles. Thus, the reaction enthalpies predicted from DFT are always conserved, leading to identical predictions of a microkinetic model, regardless of the reference/anchor basis set.