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The air is a mixture of a number of gases. The major components are oxygen and nitrogen with approximate proportion of 20% is to 79% by volume at 298 K. The water is in equilibrium with air at a pressure of 10 atm. At 298 K if the Henry’s law constants for oxygen and nitrogen are $3.30 \times 10^7$ mm and $6.51 \times 10^7$ mm respectively, calculate the composition of these gases in water.

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1 Answer

$X_{O2}=4.61\times 10^{-5}$ and $X_{N_2}=9.22\times 10^{-5}$
Hence (A) is the correct answer.
answered Jun 16, 2014 by sreemathi.v