“The amount of air dissolved in a fluid is proportional to the pressure in the system”, which law is applicable to this statement?(a) Raoult’s law(b) Fick’s law(c) Henry’s law(d) Newton’s lawI got this question by my school teacher while I was bunking the class.My query is from Estimating Oxygen Solubility in section Mass Transfer of Bioprocess Engineering

“The amount of air dissolved in a fluid is proportional to the press

1.	“The amount of air dissolved in a fluid is proportional to the pressure in the system”, which law is applicable to this statement?(a) Raoult’s law(b) Fick’s law(c) Henry’s law(d) Newton’s lawI got this question by my school teacher while I was bunking the class.My query is from Estimating Oxygen Solubility in section Mass Transfer of Bioprocess Engineering
Answer» Right answer is (C) Henry’s law To explain: Solubility of AIR in water follows Henry’s Law – “the amount of air dissolved in a fluid is PROPORTIONAL to the pressure in the system” – and can be expressed as: c = pg / kH where, c = solubility of dissolved gas kH = proportionality constant depending on the NATURE of the gas and the solvent pg = partial pressure of gas (Pa, psi) The solubility of OXYGEN in water is higher than the solubility of nitrogen. Air dissolved in water contains approximately 35.6% oxygen compared to 21% in air.

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