31 g of ethylene glycol is mixed with 500 g of water. The freezing point of the aqueous solution is \ \ \ \ K. (in nearest integer) ( K_f of water…

$\displaystyle 31$ g of ethylene glycol is mixed with $\displaystyle 500$ g of water. The freezing point of the aqueous solution is \_\_\_\_ K. (in nearest integer) ( $\displaystyle \mathrm{K}_{\mathrm{f}}$ of water $\displaystyle =1.86 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}$ ) [Molar mass of $\displaystyle \mathrm{C}, \mathrm{H}, \mathrm{O}$ are $\displaystyle 12,1,16 \mathrm{gmol}^{-1}$ ]