Problem: The Henrys law constant for helium gas in water at 30 oC is 3.7 10 - 4 M/atm; the constant for N2 at 30 oC is 6.0 10 - 4 M/atm.If helium gas is present at 1.7 atm pressure, calculate the solubility of this gas.

FREE Expert Solution

We’re being asked to determine the solubility of He in water. 


Recall that the solubility of a gas is given by Henry’s law:


Sgas = kHPgas


where Sgas = solubility of the gas (in mol/L or M), kH = Henry’s law constant for the gas, Pgas = partial pressure of the gas.


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Problem Details

The Henrys law constant for helium gas in water at 30 oC is 3.7 10 - 4 M/atm; the constant for N2 at 30 oC is 6.0 10 - 4 M/atm.

If helium gas is present at 1.7 atm pressure, calculate the solubility of this gas.

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