Question

State Henry's law and mention two of its important applications.

Answer 1

Henry's law states that the solubility of a gas in a liquid is directly proportional to the pressure of the gas. ... Partial pressure of the gas in solution = KH x mole fraction of gas in solution or where KH isHenry's law constant.

1) In the production of carbonated beverages-in order to increase the solubility of CO2 in cold drinks,beer etc,the bottle are sealed under high pressure.When the bottle is opened under normal atmospheric pressure,the pressure inside the bottle falls to atmospheric pressure & the excess CO2bubbles out of the bottle causing effervescence.

2) At high altitudes-the partial pressure of oxygen at high altitudes is less than the ground level.this results in low concentration of oxygen in the blood & tissues of the peoples

hope it helps uuh..

Answer 2

1.To increase the solubility of CO2 in soft drink and soda water, the bottle is sealed under high pressure. When bottle is opened,under normal Atmospheric pressure, the pressure inside the bottle falls to atmosphere pressure and effervescence of CO2 gas is seen