When 600 mL of 0.2 M HNO3 is mixed with $400 \mathrm{~mL}$ of 0.1 M NaOH solution in a flask, the rise in temperature of the flask is ___________ $\times 10^{-2}{ }\,^{\circ} \mathrm{C}$. (Enthalpy of neutralisation $=57 \mathrm{~kJ} \mathrm{~mol}^{-1}$ and Specific heat of water $=4.2 \,\mathrm{JK}^{-1} \mathrm{~g}^{-1}$) (Neglect heat capacity of flask)

Question

When 600 mL of 0.2 M HNO₃ is mixed with $400 \mathrm{~mL}$ of 0.1 M NaOH solution in a flask, the rise in temperature of the flask is ___________ $\times 10^{-2}{ }\,^{\circ} \mathrm{C}$.

(Enthalpy of neutralisation $=57 \mathrm{~kJ} \mathrm{~mol}^{-1}$ and Specific heat of water $=4.2 \,\mathrm{JK}^{-1} \mathrm{~g}^{-1}$) (Neglect heat capacity of flask)

Correct Answer

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