Final answer:
Pressure changes do not significantly affect the solubility of solids and liquids, but greatly influence the solubility of gases according to Henry's Law, whereby gas solubility increases with partial pressure.
Step-by-step explanation:
The effect of pressure on solubility is distinct between gases and solids or liquids. While changes in pressure have little to no effect on the solubility of solids and liquids, they have a significant impact on the solubility of gases. This is explained by Henry's Law, which states that the solubility of a gas in a liquid increases as the partial pressure of the gas above the liquid increases. This is due to the fact that higher pressure increases the concentration of the gas molecules above the solution, leading to more gas dissolving into the liquid until a new equilibrium is reached.