MCQ
The elevation in boiling point for one molal solution of a solute in a solvent is called
- ABoiling point constant
- ✓Molal elevation constant
- CCryoscopic constant
- DNone of these
✓
Answer
Correct option: B.
Molal elevation constant
b
Elevation of boiling point on adding one mole solute to $1000\, g$ solvent(one molal) is called molal boiling point elevation constant. It is denoted by $K _{ b }$. Its unit is $K\,kg\,mol^{-1}$, e.g. for water $K_b =0.52\, K\,kg\, mol^{-1}$.
Elevation of boiling point on adding one mole solute to $1000\, g$ solvent(one molal) is called molal boiling point elevation constant. It is denoted by $K _{ b }$. Its unit is $K\,kg\,mol^{-1}$, e.g. for water $K_b =0.52\, K\,kg\, mol^{-1}$.
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