Question

The rise in the boiling point of a solution containing 1.8 g of glucose in 100 g of solvent is 0.1°C. The molal elevation constant of the liquid is ______.

Options

• 0.01 K/m

• 0.1 K/m

• 1 K/m

• 10 K/m

Answer 1

The rise in the boiling point of a solution containing 1.8 g of glucose in 100 g of solvent is 0.1°C. The molal elevation constant of the liquid is 1 K/m.

Explanation:

ΔT_b ​= K_b​ . m . i

⇒ 0.1

`= K_b xx 1.8/180 xx 1000/100 xx 1`

K_b​ = 1