What is the difference between Henry's Law and Raoult's Law?

Henry's Law and Raoult's Law describe the behaviour of solutions, but Henry's Law explains the solubility of gases in liquids, while Raoult's Law explains the vapour pressure of liquid solutions.

Henry's Law states that the amount of gas dissolved in a liquid is directly proportional to the pressure of that gas above the liquid at a constant temperature. It is commonly used to understand gas solubility in situations such as carbonated drinks and gases dissolved in water.

Raoult's Law states that the partial vapour pressure of a component in an ideal solution is directly proportional to its mole fraction in the solution. It is mainly applied to mixtures of volatile liquids.

In simple terms, Henry's Law focuses on gas-liquid solutions, whereas Raoult's Law focuses on liquid-liquid solutions and vapour pressure changes. Both laws are important concepts in physical chemistry and solution behaviour.