Question

Choose the correct statement

• A. K_H value is same for a gas in any solvent
• B. Higher the K_H value more the solubility of gas
• C. K_H value increases on increasing the temperature of the solution
• D. Easily liquefiable gases usually has lesser K_H values

Answer 1

The Correct Option is C

Let's evaluate each statement:

1. $K_H$ value is same for a gas in any solvent: This is incorrect. The Henry's law constant $K_H$ varies with the type of solvent. It is specific to the gas-solvent combination.

2. Higher the $K_H$ value, more the solubility of gas: This is incorrect. According to Henry's law, a higher $K_H$ value corresponds to a lower solubility of the gas. The solubility of a gas in a solvent is inversely proportional to $K_H$.

3. K_H value increases on increasing the temperature of the solution: This is correct. As the temperature increases, the solubility of gases generally decreases, which causes the Henry's law constant $K_H$ to increase. This is because gases become less soluble at higher temperatures.

4. Easily liquefiable gases usually have lesser K_H values: This is incorrect. Gases that are easily liquefiable, such as ammonia, generally have higher solubility in a solvent, which corresponds to a lower $K_H$ value.

Therefore, the correct answer is (C): $K_H$ value increases on increasing the temperature of the solution.