Question
(a) Draw a labelled diagram to show the change in vapour pressure of a solvent, when a non-volatile solute is added to it.
(b) Show that the change in boiling point of the solvent in this diagram?
Solution
Answer:
(a) It is found that the boiling point of the solution is always higher than that of the pure solvent. The elevation in boiling point is the increase in boiling point when a non-volatile solute is added to a solvent.
(b) In the above diagram ΔTb indicates the change (increase) in boiling point of solvent.
(a) It is found that the boiling point of the solution is always higher than that of the pure solvent. The elevation in boiling point is the increase in boiling point when a non-volatile solute is added to a solvent.
(b) In the above diagram ΔTb indicates the change (increase) in boiling point of solvent.
