Given that the data for neutralization of a weak acid (HA) and strong acid with a strong base is: HA +OH^(-) rArr A^(-) + H_(2)O: DeltaH = -41.80kJ , H^(+) + OH^(-) rArr H_(2)O, Delta H= -55.90kJ The enthalpy of dissociation of weak acid would be

Given that the data for neutralization of a weak acid (HA) and strong

1.	Given that the data for neutralization of a weak acid (HA) and strong acid with a strong base is: HA +OH^(-) rArr A^(-) + H_(2)O: DeltaH = -41.80kJ , H^(+) + OH^(-) rArr H_(2)O, Delta H= -55.90kJ The enthalpy of dissociation of weak acid would be
Answer» `-97.20kJ` `+97.70kJ` `-14.10kJ` `14.10kJ` Solution :REACTION for dissociation of weak ACID is `HA rarr H^(+) + A^(-)` …(1) GIVEN reactions are `HA + OH^(-) rarr A^(-) + H_(2)O` …(2) `H^(+) + OH^(-) rarr H_(2)O` …(3) (eq. (1) = Eq. (2) - Eq(3) `Delta H = - 41.80 - (-55.90) = 14.10`