Solubility Factors:
* Polarity: Carbon dioxide is a polar molecule, while oxygen is nonpolar. Water is a polar solvent, and polar molecules dissolve better in polar solvents.
* Intermolecular Forces: Carbon dioxide can form weak hydrogen bonds with water molecules, while oxygen cannot. These hydrogen bonds enhance the solubility of carbon dioxide.
* Pressure: The solubility of gases in liquids increases with increasing pressure.
* Temperature: The solubility of gases in liquids generally decreases with increasing temperature.
Solubility Values:
At 20°C and 1 atm pressure:
* Oxygen solubility in water: 0.043 g/L
* Carbon dioxide solubility in water: 1.45 g/L
Conclusion:
The higher polarity, hydrogen bonding capability, and solubility values of carbon dioxide compared to oxygen make it more soluble in water.