Raoult S Law And Henry S Law

Henry's law states that at a constant temperature, the amount of gas dissolved in a liquid is directly proportional to the partial pressure of the gas above the liquid. The considerations of Henry's law include:

• Gas reacts with solvent chemically: This statement is incorrect regarding Henry's law. Henry's law specifically applies when the gas does not chemically interact with the solvent. If a chemical reaction occurs, the solubility is affected, and Henry's law does not hold.
• Pressure and concentrations are not too high: Henry's law is valid only at low to moderate pressures. At high pressures, deviations occur due to interactions between gas molecules.
• Temperature is not too low: For Henry's law to be applicable, the temperature should not be too low as it can lead to changes in the state of matter, affecting solubility and molecular behavior.
• Gas does not change its molecular state: This condition implies that the gas neither dissociates nor associates in the solution, which is necessary for the proper application of Henry's law.

Therefore, the incorrect statement regarding Henry's law is: Gas reacts with solvent chemically.