When \( 400 \mathrm{~mL} \) of \( 0.2 \mathrm{M} \mathrm{H}_{2} \mathrm{SO}_{4} \) solution is m...
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0When \( 400 \mathrm{~mL} \) of \( 0.2 \mathrm{M} \mathrm{H}_{2} \mathrm{SO}_{4} \) solution is mixed with 600 \( \mathrm{mL} \) of \( 0.1 \mathrm{M} \mathrm{NaOH} \) solution, the increase in temperature of the final solution is \( \ldots . . \times 10^{-2} \mathrm{~K} \).
[Use : \( \mathrm{H}^{+}(\mathrm{aq})+\mathrm{OH}^{-} \longrightarrow \mathrm{H}_{2} \mathrm{O} ; \Delta \mathrm{H}=-57.1 \mathrm{~kJ} \mathrm{~mol}^{-1} \)
Specific heat of \( \mathrm{H}_{2} \mathrm{O}=4.18 \mathrm{~J} \mathrm{~K}^{-1} \mathrm{~g}^{-1} \)
Density of \( \mathrm{H}_{2} \mathrm{O}=1.0 \mathrm{~g} \mathrm{~cm}^{-3} \)
Assume no. change in volume of solution on mixing.
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