Question

The solubility of a gas is directly proportional to the pressure of the gas. This statement is based on:

• A. Kohlrausch law
• B. Raoults law
• C. Henrys law
• D. None of these

Answer 1

Answer: (C)

Henrys law

Answer 2

Henry's law states that at a constant temperature, the solubility of a gas is directly proportional to the pressure of the gas. In other words, The partial pressure of the gas in vapour phase (p) is proportional to the mole fraction of the gas (x) in the solution. $p = K _{ H } x$ Here, $K_{H}$ is the Henry's law constant. Hence, the given statement is Henry's law.