At 298 K, the mole percentage of N_2( g ) in air is 80 %. Water is in equilibrium with air at a pressure of 10 atm. What is the mole fraction of N_2(…

At $\displaystyle 298$ K , the mole percentage of $\displaystyle \mathrm{N}_2(\mathrm{~g})$ in air is $\displaystyle 80 \%$. Water is in equilibrium with air at a pressure of $\displaystyle 10$ atm . What is the mole fraction of $\displaystyle \mathrm{N}_2(\mathrm{~g})$ in water at $\displaystyle 298$ K ? ( $\displaystyle \mathrm{K}_{\mathrm{H}}$ for $\displaystyle \mathrm{N}_2$ is $\displaystyle 6.5 \times 10^7 \mathrm{~mm} \mathrm{Hg}$ )