i0_Fe i0ref_Fe*(cH/cHrefFe)^a1Fe*(cCO2/cCO2refFe)^a2Fe*exp(-37.5e3[J/mol]/R_const*(1/T-1/TrefFe)) Exchange current density for iron oxidation
Dt 0.18*((x)/(delta))^3*mu/rho Turbulent diffusivity
i0_H2 i0ref_H2*(cH/cHrefH2)^a1H2*exp(-30e3[J/mol]/R_const*(1/T-1/TrefH2)) Exchange current density for H+ reduction
i0_H2CO3 i0ref_H2CO3*(cH/cHrefH2CO3)^a1H2CO3*(cH2CO3/cH2CO3refH2CO3)^a3H2CO3*exp(-30e3[J/mol]/R_const*(1/T-1/TrefH2CO3)) Exchange current density for H2CO3 reduction
i0_H2O i0ref_H2O*exp(-30e3[J/mol]/R_const*(1/T-1/TrefH2)) Exchange current density for water reduction