Manipal MET2013ChemistrySolutions
10 g of non-volatile solute is dissolved in 180 g of H ₂ Oresulting in lowering of vapour pressure by 0.5 % . Determine the boiling point of solution if K_b of water is 0.52 ~K ~kg ~mol ⁻¹ .
Options
- A100.01^ C
- B100.15^ C
- C100.23^ C
- D100.32^ C
Correct answer
B. 100.15^ C
Step-by-step solution
p=p^ x₁99.50=100 n₁ n₁+n₂ n₂ n₁ = 1 191 T_b=k_b m=K_b n₂ n₁ 1000 m₁ aligned & =0.52 1 191 1000 18 =0.15 T_b & =100.15^ C aligned