the solubility of co2 gas in h2o depends on ...... while the solubility of h2 gas in h2o depends on.......

The solubility of CO2 gas in H2O depends on temperature and pressure, while the solubility of H2 gas in H2O depends solely on temperature.

To explain how to determine the solubility of CO2 gas in H2O, you can use Henry's Law, which states that the solubility of a gas in a liquid is directly proportional to the partial pressure of the gas above the liquid. In simpler terms, the higher the pressure of CO2, the more soluble it becomes in water.

Similarly, the solubility of H2 gas in H2O is determined by the same principle of Henry's Law, but without the influence of gas pressure. Only temperature affects the solubility of H2 gas in water. As the temperature decreases, the solubility of H2 gas in water increases, and as the temperature increases, the solubility decreases.

So, in summary:
1. The solubility of CO2 gas in H2O depends on temperature and pressure.
2. The solubility of H2 gas in H2O depends only on temperature.