"The partial pressure of the gas in vapor phase (p) is proportional to the mole fraction of gas (x) in the solution". Which law states this statement?

Henry's law Raoult's law Aufbau principle None of these

Henry's law

Henry's law  p = KH x  where KH is Henry's law constant. different gases have different KH values at the same temperature which suggests that it is a function of the nature of the gas.