Planetary radius at t = 5 Gyr (top) and relative difference between the conductivity models (bottom). The left (M_p = 5 M_⊕), middle (M_p = 10 M_⊕), and right (M_p = 15 M_⊕) columns show different planet masses. The circular (Cond-1), triangular (Cond-2), and square (Cond-3) markers represent the conductivity model. The light shades in the upper panel show results without convective mixing. We connected the different entropies with the same models for visibility reasons. The relative difference in the radius was calculated using ΔR/R = (R′ − R_Cond-1)/R_Cond-1, where R_Cond-1 is the radius for Cond-1 and R′ the radius for Cond-2 or Cond-3.