State and explain henry's law.

Explanation

The solubiliy of a gas in a liquid is directily proportional to the pressure of gas over the solution at a define temprature.
(or)
If mole of fraction of the is used as a measure of it.s solubility .hence.s law can be stated as "The mole fraction of the gas in solution is proportinal to the partial pressure of the gas"
Mathematical eqution of henry.s law :
`P_("solute") prop x_("solute in solution")" " ...(1)`
`P_("solute")=K_(H)x_("solute in solution")" " ...(2)`
Here `p_("solute")` represent the partial pressure of the gas in vapour state which is commonly called as vapour pressure.`x_("solute")` in solution represents the mole fraction of solute in the solution.`k_H` is a emprical constant with the dimension of pressure.The value of `K_H` depends on the nature of the gaseous solute and solvent.