Final answer:
Henry's law states that the solubility of a gas in a liquid is directly proportional to the partial pressure of the gas above the liquid.
Step-by-step explanation:
Henry's law states that the solubility of a gas in a liquid is directly proportional to the partial pressure of the gas above the liquid. This means that as the pressure of the gas increases, more gas molecules dissolve in the liquid. Conversely, as the pressure decreases, fewer gas molecules dissolve.