where [𝐶𝑂 : ] is the concentration of gas molecules adsorbing onto the pore, P is the pressure on the feed side, and 𝐴 ;<"= is the pore area (Table -S5). Based on Eq. 5, TST significantly underpredicts the gas translocation rate (Figure ). To understand the reason for this underestimation, we compared 𝛥𝐸 and 𝐴 !"#$% &'& computed from MD simulations and TST (Figure b-c, Section S7). 𝛥𝐸 is similar for both TST and MD and thus, is not responsible for TST underpredictions. 𝐴 !"#$% &'& is found to be significantly lower than 𝐴 !"#$% >?