Question

Fish generally needs O₂ concentration in water at least 3.8 mg/L for survival. What partial pressure of O₂ above the water is needed for the survival of fish? Given the solubility of O₂ in water at 0°C and 1 atm partial pressure is 2.2 × 10^-3 mol/L (0.054 atm)

Answer 1

Given : Required concentration of O₂

Solubility of O₂ = 2.2 × 10^-3 mol L^-1 

P = 1 atm 

Partial pressure of O₂ needed = Po₂ = ?

Pressure needed = Po₂ = 0.05397 atm.

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