Question

Difference between lowering of vapour pressure and relative lowering of vapour pressure

Answer 1

Answer:

Since the solute molecules are non-volatile, the vapour above the solution consists of only solvent (pure liquid) molecules. After adding the solute, the vapour pressure of the solution is found to be lower than that of the pure liquid at a given temperature. ... This is known as relative lowering of vapour pressure

Answer 2

Since the solute molecules are non-volatile, the vapour above the solution consists of only solvent (pure liquid) molecules. After adding the solute, the vapour pressure of the solution is found to be lower than that of the pure liquid at a given temperature. This is known as relative lowering of vapour pressure