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Q#1 VLE GATE CH 2023 MCQ +2 marks -0.66 marks

Water in a container at 290 K is exposed to air containing 3% CO₂ by volume. Air behaves like an ideal gas and is maintained at 100 kPa pressure. The liquid phase comprising of dissolved CO₂ in water behaves like an ideal solution. Use Henry's constant of CO₂ dissolved in water at 290 K as 12 MPa. Under equilibrium conditions, which one of the following is the CORRECT value of the mole fraction of CO₂ dissolved in water?

\(2.9 \times 10^{-4}\)

\(0.9 \times 10^{-4}\)

\(2.5 \times 10^{-4}\)

\(0.5 \times 10^{-4}\)

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