Solubility of helium in water

  • Thread starter vinchem14
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Dear Forum members,

Situation: 3000 litre of water is pressurized with 1 bar helium gas in closed tank.

question 1: My question is that, if i know the solubility of helium gas in water at 1 bar partial pressure of helium over water at temp of 25 deg is 0.00145 g/litre, Whether i can apply this solubility law to entire volume of water.

Solubility value for 3000 litre of water = 0.00145*3000 = ?

Whether solubility of helium gas depends upon the surface area of exposure of water, resistance offered by the liquid to transfer the solute from water interface to its bulk volume.

or either i should interphase mass transfer theories to calculate the exact amount of soluble gases in 3000 litre of water.


question 2: If we have estimated the solubility in 3000 litres of water, how can we similarly estimate the degasification rate of solublized helium from water, if same water is kept under different conditions of nitrogen gas pressure or in a vaccum condition (after achieving sufficient solubility with helium gas). Is there any law to calculate the amount of solublized gas transfer from water to gas phase.
 

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