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The solubility of gasses in liquids usually __________ by increasing the pressure and ________ by decreasing the pressure.
1. Increases, Decreases
2. Increases, Increases
3. Decreases, Decreases
4. Decreases, Increases

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Correct Answer - Option 1 : Increases, Decreases

The solubility of gasses in liquids usually increases by increasing the pressure and decreases by decreasing the pressure.

  • The solubility of gasses depends on the environment: the increase in the environment increases the solubility, while the reduction in the pressure reduces the solubility.
  • This statement is formalized in Henry's Law, which provides that the solubility of a gas in a liquid is directly proportional to the pressure of that gas above the surface of the solution.
  • Solubility and pressure are very important for scuba divers who are susceptible to bends.
  • As divers swim deeper, the pressure increases the amount of nitrogen dissolved in their blood. If they do not rise slowly, the nitrogen can spread out of their blood too quickly, causing pain and even death.

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