State Henry's law and mention its some important applications.

Explanation

Henry.s Law. The partial pressure of the gas in vapour phase (p) is directly proportional to the mole fraction of the gas (x) in the solution
`p = K_(H) x`
Here, `K(H)` is the Henry is law constant. More the value of `K_(H)` at a given pressure, the lower is the solubility of the gas in the liquid
Applications of Henry.s Law
● To increase the solubility of `CO_(2)` in solf drinks and soda water, the bottle is sealed under high pressure .
● To minimise the painful effects accompanying the decompression of deep sea divers, oxygen diluted with less soluble helium gas is used as breathing gas
● In lungs, where oxygen is present in air with high partial pressure, haemoglobin combines with oxygen to form oxyhaemoglobin . in tissues where partial pressure of oxygen is low , oxohaemoglobin releases oxygen for utilization in cellular activities