(All data for CO2 in Seawater with alkalinity 2.45 mM)
T = 0 C |
T = 15 C |
T = 30 C |
|
| Reaction rate CO2 + H2O => H2CO3 (s-1 ) | 1.85 x10-3 | 13.95 x 10-3 | 53.7 x10-3 |
| Reaction rate CO2 + OH- => HCO3- (s-1 mol-1 kg) | 860 | 920 | 1440 |
| Schmidt number (µ 1/ Diffusivity) | 2073 | 859 | 402 |
| Dimensionless Solubility (mol l-1water / mol l-1air) | 1.486 | 0.933 | 0.659 |
| H2CO3 dissociation constant K1 (mol kg-1 ) | 0.78 x 10-6 | 1.12 x 10-6 | 1.54 x 10-6 |
| HCO3 - dissociation constant K2 (mol kg-1 ) | 4.12 x 10-10 | 7.93 x 10-10 | 14.3 x 10-10 |
| water dissociation constant Kw (mol2 kg-2 ) | 0.49 x 10-14 | 2.35 x 10-14 | 9.27 x 10-14 |
| [OH-] for constant pCO2= 350ppm (mol kg-1 ) | 0.61 x 10-6 | 3.11 x 10-6 | 11.6 x 10-6 |
| [H+] for constant pCO2 =350ppm (mol kg-1 ) | 7.94 x 10-9 | 7.54 x 10-9 | 7.97 x 10-9 |
| TCO2 for constant pCO2 =350ppm (mol kg-1 ) | 2.30 x 10-3 | 2.17 x 10-3 | 2.03 x 10-3 |
| [OH-] for constant TCO2= 2.17 mM (mol kg-1 ) | 1.14 x10-6 | 3.11 x10-6 | 7.11 x10-6 |
| [H+] for constant TCO2 = 2.17 mM (mol kg-1 ) | 4.24 x10-9 | 7.54 x10-9 | 13.0 x10-9 |
| pCO2 for constant TCO2 = 2.17 mM (ppm) | 170 | 350 | 650 |