Which law states that the mass of a gas dissolved in a given volume of solvent at a constant temperature is proportional to the partial pressure of the gas in equilibrium with the solution?

💡 Solution & Explanation

Henry's Law states that at a constant temperature, the solubility of a gas in a liquid is directly proportional to the partial pressure of that gas above the solution. Other laws like Raoult's law deal with vapor pressure of solutions, and Dalton's law relates to partial pressures in gas mixtures. This principle explains why carbon dioxide remains dissolved under high pressure in sealed beverage bottles. A related application is deep-sea divers using helium-oxygen mixtures to prevent decompression sickness.