If O 2 gas is bubbled through water at 303   K , the number of millimoles of O 2 gas that dissolve in 1…

If O2 gas is bubbled through water at 303 K, the number of millimoles of O2 gas that dissolve in 1 litre of water is____(Nearest integer) (Given : Henry's Law constant for O2 at 303 K is 46.82k bar and partial pressure of O2=0.920 bar)
(Assume solubility of O2 in water is too small, nearly negligible)

Solution

p=KH×x

0.920=46.82×103 bar ×mol of O2mol of H2O

0.920=46.82×103×mol of O2100018

0.920=46.82×18×nO2

0.92046.82×18=nO2

⇒1.09×10-3=n02

⇒m mol of O2=1 millimole

Asked in: JEE Main 2022 (29 Jul Shift 1)

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