\(\frac{P_{solvent}^{0}\,-\,\,{{P}_{solution}}}{{{P}_{solution}}}\,\,=\,\,\frac{{{n}_{solut}}}{{{N}_{solvent}}}\,\,\,\)
\(\Rightarrow \,\,\,\frac{143\,\,-\,\,{{P}_{solution}}}{{{P}_{solution}}}\,\,=\,\,\frac{0.5\,\,\times \,\,154}{65\,\,\times \,\,158}\)
\({{P}_{solution}}\,\,=\,\,141.93\,\,mm\)
(ઉપયોગ $R$ $=0.083\,L\,bar\,K ^{-1}\,mol ^{-1}$ )
[આપેલ : એસિટિક એસિડની ધનતા $1.02\,g\,mL ^{-1}$ છે.એસિટિક એસિડનું મોલર દળ $60\,g\,mol ^{-1}$ છે.$\left. K _{f}\left( H _{2} O \right)=1.85 K\,kg\,mol ^{-1}, K _{f}\left( H _{2} O \right)=1.85\,K\,kg\,mol ^{-1}\right]$