Boiling point elevation of a solution of NaOH _____________________?
Correct answer: D. Both B. and C
- A. Increases rapidly with temperature rise
- B. Is almost independent of temperature
- C. Is almost independent of pressure
- D. Both B. and C
Explanation
For a fixed concentration, boiling-point elevation is approximately ΔTb = Kb m, and its dependence on temperature and pressure is weak compared with the solvent's boiling point itself. Thus both the temperature and pressure effects on the elevation are treated as nearly independent in this standard approximation.
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