At 298 K, the mole percentage of in air is 80%. Water is in equilibrium with air at a pressure of 10 atm. What is the mole fraction of in water at 298 K? [2026]

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Solution

Q.
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 $N_{2} (g)$ in water at 298 K

$(K_{H} for N_{2} = 6.5 \times 10^{7} mm Hg)$ [2026]

1 $1.17 \times 10^{- 4}$

2 $9.35 \times 10^{5}$

3 $1.23 \times 10^{- 7}$

4 $9.35 \times 10^{- 5}$

Ans.
(4)

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