If 0.05 mole of gas are dissolved in 500 grams of water under 1 atm. pressure, 0.1 moles will be dissolved if the pressure is 2atm. It illustrates

According to the data , In a given wt. of water (500gm)

0.05 moles of gas dissolved at 1atm

0.1  moles of gas dissolved at 2atm

 $\therefore {\mathrm{X}}_{\mathrm{A}} \propto {\mathrm{P}}_{\mathrm{A}}$

This illustrates Henry's law