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  • Calculate the temperature in Kelvin at which solution in battery will freeze here, battery contains  &

Calculate the temperature in Kelvin at which solution in battery will freeze here, battery contains  24 \%  by weight solution of \mathrm{H}_2 \mathrm{SO}_4  and  Van't Hoff factor is 3.81 at this concentration

Option: 1

200 k 


Option: 2

 111.2 k 


Option: 3

 251.1 k 
 


Option: 4

 300 k


Answers (1)

best_answer

\mathrm{m=\frac{24}{98} \times \frac{1}{76 / 1000} }
\mathrm{m=\frac{24}{98} \times \frac{1}{0.076} }
\mathrm{m=3.2 }

\mathrm{ \Delta T_f=K_ f \times i \times m }
\mathrm{\Delta T_f=1.8 \times 3.81 \times 3.2 }
\mathrm{\Delta T_f=21.9^{\circ} \mathrm{c} }
\mathrm{T_f=-21.9^{\circ} \mathrm{C} }
\mathrm{T_f=273+(-21.9) }
\mathrm{T_f=251.1 \mathrm{~K} }.

Posted by

Anam Khan

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