Question

The rise in the boiling point of a solution containing 1.8 gram of glucose in $100g$ of a solvent in $0.1^{o}C$. The molal elevation constant of the liquid is.

• A. 0.01 $K/m$
• B. $0.1K/m$
• C. $1K/m$
• D. $10K/m$

Answer 1

Answer: (C)

$1K/m$

Answer 2

$K_{b} = \frac{\Delta T_{b}}{m} = \frac{0.1 \times 100}{\frac{1.8}{180} \times 1000} = 1K/m$.