Which of the following statement regarding Henry’s law is not correct ?

 The value of ${\mathrm{k}}_{\mathrm{H}}$  increases with increase in temperature

Higher the value of ${\mathrm{k}}_{\mathrm{H}}$ , at a given pressure higher is the solubility of gas

The partial pressure of the gas in vapour phase is proportional to mole fraction of gas in the solution

 Different gases have different  ${\mathrm{k}}_{\mathrm{H}}$values at the same temperature