When concentration of a salt solution is increased,

Question

When concentration of a salt solution is increased, (A) boiling point increases, while vapour pressure decreases (B) boiling point decreases, while vapour pressure increases (C) freezing point decreases, while vapour pressure increases (D) freezing point increases, while vapour pressure decreases

Tardigrade Admin · Accepted Answer

Increase in the concentration of salt solution means more solute (salt) is present and hence, more surface sites are occupied by solute molecules, That's why vapour pressure decreases and a higher temperature is required to boil the solution, i.e. boiling point increases.

Q. When concentration of a salt solution is increased,

boiling point increases, while vapour pressure decreases

boiling point decreases, while vapour pressure increases

freezing point decreases, while vapour pressure increases

freezing point increases, while vapour pressure decreases

Increase in the concentration of salt solution means more solute (salt) is present and hence, more surface sites are occupied by solute molecules, That's why vapour pressure decreases and a higher temperature is required to boil the solution, i.e. boiling point increases.