Solubility is the maximum amount of a substance that will dissolve in a given amount of solvent at a specific temperature. There are two direct factors that affect solubility: temperature and pressure. Temperature affects the solubility of both solids and gases, but pressure only affects the solubility of gases.
1. The reaction is exothermic, so an increase in temperature means that solubility would decrease.
2. The change in solubility cannot be determined from the given information. Increasing pressure increased solubility, but increasing temperature decreases solubility
3. An increase in pressure and an increase in temperature in this reaction results in greater solubility.
4. An increase in pressure results in more gas particles entering the liquid in order to decrease the partial pressure. Therefore, the solubility would increase.
Water
The more polar the compound, the more soluble it is in water
