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Solutions — Chemistry STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 ScienceChemistrySolutions2 Marks
Question
State Henry’s law and mention some important applications?
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Answer

The effect of pressure on the solubility of a gas in a liquid is governed by Henry's Law. It states that the solubility of a gas in a liquid at a given temperature is directly proportional to the partial pressure of the gas Mathematically, P = KHX where P is the partial pressure of the gas; and X is the mole fraction of the gas in the solution and KH is Henry's Law constant.

Applications of Henry's law:

  1. In the production of carbonated beverages (as solubility of C02 increases at high pressure).
  2. In the deep sea diving.
  3. For climbers or people living at high altitudes, where low blood 02 causes climbers to become weak and make them unable to think clearly.

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