Question

Which law relates solubility of solvents with pressure?

• A. Hess’ law
• B. Henry’s law
• C. Charles’ Law
• D. Boyle’s law

Hint:

Henry's law is fundamental in understanding how gases dissolve in liquids under pressure, such as in soda cans.

Answer 1

The Correct Option is B

• Option 1: Hess’ law - Hess' law relates to the heat changes in chemical reactions, not to the solubility of solvents. Therefore, this is not the correct answer.
• Option 2: Henry’s law - This is the correct answer. Henry’s Law states that the solubility of a gas in a liquid is directly proportional to the pressure of the gas above the liquid, provided the temperature is constant.
• Option 3: Charles’ Law - Charles' Law relates to the relationship between the volume and temperature of a gas, not the solubility of solvents. Therefore, this is not the correct answer.
• Option 4: Boyle’s law - Boyle’s law describes the relationship between the pressure and volume of a gas at constant temperature, but it does not describe the solubility of solvents. Hence, this is not the correct answer.

Explanation:

Henry's Law is the correct law that describes the relationship between the solubility of gases in solvents and pressure. According to Henry’s Law, the solubility of a gas increases as the pressure of the gas above the solvent increases, assuming temperature remains constant.