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Question

Solubility of gases in water is ________. proportional to the pressure and _________ proportional to the temperature [inversely / directly].
  1. directly, directly
  2. inversely, inversely
  3. inversely, directly
  4. directly, inversely

A
directly, directly
B
inversely, directly
C
directly, inversely
D
inversely, inversely
Solution
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Henry's law is used to quantify the solubility of gases in solvents. The solubility of gas in a solvent is directly proportional to the partial pressure of the gas.
p=kc
p= partial pressure
k= temperature constant
c= concentration of dissolved gas
The solubility of the gas in a solvent is inversely proportional to temperature.

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