Table 5:

Reaction rates. Observe that for the two fast time scale parameters, ε and ε′, the precise values in the fast/slow propagation scheme are not important, since only the ratios defining the equilibrium conditions are needed in the model. When carbonic anhydrase is present, the reaction rates k_±1 are enhanced by an acceleration factor, denoted by A.

Reaction	k ℓ	k −ℓ	K [mM]
${\text{CO}}_2+{\text{H}}_2\text{O}\underset{k_{-1}}{\overset{k_1}{\rightleftharpoons }}{\text{H}}_2{\text{CO}}_3$	0.0302 [1/s]	10.9631 [1/s]	2.7547×10−4
${\text{H}}_2{\text{CO}}_3\underset{k_{-2}}{\overset{k_2}{\rightleftharpoons }}{\text{HCO}}_3^{-}+{\text{H}}^{+}$	ε = 10−9 [1/s]	ε/K2	K2 = 0.2407
${\text{HA}}_{\text{in}}\underset{k_{-3}}{\stackrel{k_3}{\rightleftharpoons }}{\text{A}}_{\text{in}}^{-}+{\text{H}}_{\text{in}}^{+}$	ε′ = 10−6 [1/s]	ε′/KHA	KHA = 7.9433 × 10−5
${\text{HA}}_{\text{out}}\underset{k_{-3}}{\stackrel{k_3}{\rightleftharpoons }}{\text{A}}_{\text{out}}^{-}+{\text{H}}_{\text{out}}^{+}$	ε′ = 10−6 [1/s]	ε′/KHA	KHA = 3.1623 × 10−5