Henry’s law Formula
The solubility (Mole fraction) of gas in a liquid at constant temperature is directly proportional to the pressure of that solution.
OR
Partial pressure is applied any gas on liquid surface is directly proportional to the Mole fraction present in liquid solvent.
That is S α P or Pα X
Formula :
P = KH × X
X = Mole fraction ( Solubility of gas in liquid)
Kᴴ = Henry ‘s constant
P = pressure
Henry’s constant (Kᴴ)
Henrys constant Is solubility of gas In mole dm⁻³ at one atmosphereic pressure at constant temperature.