An aqueous solution freezes at 272. 4K , while pure water freezes...

Depression in freezing point is given as ${ΔT}_{f} = {K}_{f}m$

Molality of solution \left(m\right) = \dfrac{\Delta Tf}{Kf}$</p><p>or~$m = \dfrac{0 . 6}{1 . 86} = 0 . 322m$</p><p>Elevation in boiling point of solution is given as</p><p>${ΔT}_{b} = {k}_{b} \times m$</p><p>${ΔT}_{b} = 0 . 512 \times 0 . 322$</p><p>${ΔT}_{b} = 0 . 165$</p><p>$∴$Boiling point of solution$= 373 + 0 . 16$</p><p>$= 373 . 16K