Henry's law (Partial pressure of gas above solution proportional to its mole fraction in liquid)

jee-mainjee-advancedneet-ug

Partial pressure of gas above solution proportional to its mole fraction in liquid (dilute); K_H is Henry’s constant

What each symbol means

SymbolWhat it stands for
pEquilibrium partial pressure of gas above solution
xMole fraction of dissolved gas in liquid (dilute)
K_HHenry’s law constant (pressure units / mole fraction scale — check problem convention)

When to use this

Dilute solution; constant T; gas does not react chemically with solvent.