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Question

If N2 gas is bubbled through water at 293K, Calculate solubility of N2 gas ? Assume that N2 exerts a partial pressure of 0.987bar. Given that Henry's law constant for N2 at 293K is 76.48k barmole/litre

A
1.29×105molelitre
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B
1.29×104molelitre
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C
2.9×103molelitre
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D
2.9×105molelitre
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Solution

The correct option is D 1.29×105molelitre
According to Henry's law, P=Kx
x is the mole fraction
K is the henry's law constant
P is the pressure in atm.
Substitute values in the above expression.
x=0.987 bar76480 bar=1.29×105 molelitre

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