The enthalpy of neutralization of oxalic acid by a strong base is `-25 kcal mol^(-1)`. The enthalpy of neutralization of strong acid and strong base is `-13.7` kcal `"equiv"^(-2)`. The enthalpy of dissociation of `H_(2)C_(2)O_(4) iff 2H^(+)+C_(2)O_(4)^(2-)` isA. 1.0 kcal `mol^(-1)`B. 2.0 kcal `mol^(-1)`C. 18.55 kcal `mol^(-1)`D. 11.7 kcal `mol^(-1)`

The enthalpy of neutralization of oxalic acid by a strong base is `-25

1.	The enthalpy of neutralization of oxalic acid by a strong base is `-25 kcal mol^(-1)`. The enthalpy of neutralization of strong acid and strong base is `-13.7` kcal `"equiv"^(-2)`. The enthalpy of dissociation of `H_(2)C_(2)O_(4) iff 2H^(+)+C_(2)O_(4)^(2-)` isA. 1.0 kcal `mol^(-1)`B. 2.0 kcal `mol^(-1)`C. 18.55 kcal `mol^(-1)`D. 11.7 kcal `mol^(-1)`
Answer» Correct Answer - B `H_(2)C_(2)O_(4)iff2H^(+)+C_(2)O_(4)^(2-), DeltaH_(1)=Q` and `2H^(+)+C_(2)O_(4)^(2-)+2Na^(+)+2OH^(-)rarr2Na^(+)+C_(2)O_(4)^(2-)+2H_(2)O_((l)),DeltaH_(2)=-13.7xx2` Adding both `H_(2)C_(2)O_(4)+Na^(+)+OH^(-)" "Na^(+)+C_(2)O_(4)^(2-)+H_(2)ODeltaH_(3)=-25.4 kcal` So, `Q-13.7xx2=-25.4 kcal" " = Q=2 kcal mol^(-1)`.

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