Question
While considering boiling point elevation and freezing point depression a solution concentration is expressed in molality and not in molarity. Why?
✓
Answer
- Boiling point elevation and freezing point depression involve temperature changes, (ΔTb and ΔTf).
- Since molarity depends on temperature but molality is independent of temperature we use molality and not molarity in considering boiling point elevation and freezing point depression.
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