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MHT CET Chemistry question

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5.5 mg of nitrogen gas dissolves in 180 g of water at 273 K and 1 atm pressure due to nitrogen gas. The mole fraction of nitrogen in 180 g of water at 5 atm nitrogen pressure is approximately

Answer: (D)

Solution

By Henry's law the dissolved mass at 5 atm = 5 × 5.5 = 27.5 mg, i.e. mol; water = 10 mol, so

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Question ID VK-061362