Henry's Law: Explanation, Limitations and Applications - Explained Details (Animation)

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Henry's Law
Chapters:
0:00 Kinetic school's intro
0:13 About William Henry
0:25 Henry's Law
1:08 Explanation of Henry's Law
3:46 Importance of KH value
5:02 Limitations of Henry's Law
6:51 Applications of Henry's Law

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Henry's Law :
Henry's law is one of the gas laws formulated by the British chemist, William Henry in 1803.
It stated that:
At a constant temperature, the amount of dissolved gas in a liquid is proportional to its partial pressure above the liquid.
P∝C
or, P= kH × C
P= Partial pressure of the gas above the solution (atm).
C= The amount of the gas that dissolve in liquid (mol/L).
kH = Henry’s law proportionality constant (atm⋅L/mol).

Limitation:
1. Solubility of gases in liquid should not be too much.
2. The pressure of the gas is not too high and temperature is not too low.
3. The gas should not react chemically with the solvent.
4. The gas should not undergo association or dissociation in the solution.

Applications:
1. In production of carbonated beverages.
2. In underwater diving.
3. For climbers or people living at high altitude.

Photo credit:
Scuba driver: Pia from Pexels
Climber: Suliman Sallehi from Pexels