Hi,

Henry law- 

“The partial pressure applied by any gas on a liquid surface is directly proportional to its mole fraction present in a liquid solvent.”

Mathematically Henry’s Law is –

P ∝  X

P = partial pressure applied by the gas on liquid in the solution

X = Mole fraction of gas in liquid 

P = kH.X

kH is called Henry’s law constant. 

Thanks for asking

Good day :)