Which relation is correct for elevation in boiling point?
Answer and explanation
Correct answer: ΔTb = Kb m
For a dilute solution of a non-electrolyte, elevation in boiling point is ΔTb = Kb m, where Kb is the solvent’s ebullioscopic constant and m is molality. If dissociation or association occurs, the more general form includes the van’t Hoff factor i. Option B describes freezing-point depression, while C describes osmotic pressure and D describes relative vapour-pressure lowering.
Frequently asked questions
What is the correct answer to this question?
ΔTb = Kb m
Why is this the correct answer?
For a dilute solution of a non-electrolyte, elevation in boiling point is ΔTb = Kb m, where Kb is the solvent’s ebullioscopic constant and m is molality. If dissociation or association occurs, the more general form includes the van’t Hoff factor i. Option B describes freezing-point depression, while C describes osmotic pressure and D describes relative vapour-pressure lowering.
Which subject and chapter does this question cover?
This is a Class 12 Chemistry question. Chapter: Chapter 01: Solutions. Topic: 5: Colligative Properties.
