Question
State the law co-relating the pressure of a gas and its solubility in a liquid. State an application of this law.
Solution
Answer:
Henry’s law states that the solubility of a gas in a liquid is directly proportional to pressure of the gas keeping temperature constant.
Mathematically, P = KH x
x mole fraction of gas in solution
P is partial pressure of gas,
KH is Henry's constant.
Applications: Henry's law finds various applications in industry and enables us to explain and understand some biological phenomena. The some of important applications are: CO2 solubility in soft drinks, beverages, soda water etc. is increased by applying high pressure and bottles are sealed under high pressure.
