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Question
What is the significance of Henry's Law constant KH?
What is the significance of Henry's Law constant KH?
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Solution
Henry's law is defined as, at a constant temperature, the amount of a given gas that dissolves in a given type and volume of liquid is directly proportional to the partial pressure of that gas in equilibrium with that liquid.
Mathematically, at constant temperature:
p = kH c
​where p is the partial pressure of the solute in the gas above the solution
c is the concentration of the solute and
kH is Henry's law constant, depends on the solute, solvent and the temperature.
kH : It has crucial importance in environmental chemistry, atmospheric chemistry, waste water treatment. They are needed since solubility affects volatilizations of toxic compounds into the air.
Mathematically, at constant temperature:
p = kH c
​where p is the partial pressure of the solute in the gas above the solution
c is the concentration of the solute and
kH is Henry's law constant, depends on the solute, solvent and the temperature.
kH : It has crucial importance in environmental chemistry, atmospheric chemistry, waste water treatment. They are needed since solubility affects volatilizations of toxic compounds into the air.
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