D_o2n2 k_d*(T[1/K])^1.75/(p_atm*(v_o2^(1/3)+v_n2^(1/3))^2)*(1[kg/mol]/M_o2+1[kg/mol]/M_n2)^0.5 Maxwell-Stefan diffusivity D_o2n2_eff D_o2n2*(e_por^1.5) Effective MS diffusivity D_o2h2o k_d*(T[1/K])^1.75/(p_atm*(v_o2^(1/3)+v_h2o^(1/3))^2)*(1[kg/mol]/M_o2+1[kg/mol]/M_h2o)^0.5 Maxwell-Stefan diffusivity D_o2h2o_eff D_o2h2o*(e_por^1.5) Effective MS diffusivity D_n2h2o k_d*(T[1/K])^1.75/(p_atm*(v_h2o^(1/3)+v_n2^(1/3))^2)*(1[kg/mol]/M_h2o+1[kg/mol]/M_n2)^0.5 Maxwell-Stefan diffusivity D_n2h2o_eff D_n2h2o*(e_por^1.5) Effective MS diffusivity v_in -p*perm/mu/1[mm] Inlet velocity