The enthalpy of neutralisation of a weak acid is …………….. than that of a strong acid. The difference of the latter form the former is known as enthalpy of……………of the weak acid.

The magnitude of enthalpy of neutralisation of a weak acid is smaller than that of a strong acid. (T/F)

An organic weak acid is

The enthalpy of neutralisation of a weak acid in 1 M solution with a strong base is -5.6 kJ mol^(-1) . Enthalpy of ionization of the acid is 1.5 kJ mol^(-1) and enthalpy of neutralization of the strong acid with a strong base is -57.3 kJ"equiv"^(-1) , what is the % ionization of the weak acid in molar solution (assume the acid to be monobasic) ?

Enthalpy of neutralisation of all strong acids and strong bases has the same value because

The heat of neutralisation becomes large if either the acid or the base is weak.

Enthalpy of neutralzation is defined as the enthalpy change when 1 mole of acid /base is completely neutralized by base // acid in dilute solution . For Strong acid and strong base neutralization net chemical change is H^(+) (aq)+OH^(-)(aq)to H_(2)O(l) Delta_(r)H^(@)=-55.84KJ//mol DeltaH_("ionization")^(@) of aqueous solution of strong acid and strong base is zero . when a dilute solution of weak acid or base is neutralized, the enthalpy of neutralization is somewhat less because of the absorption of heat in the ionzation of the because of the absorotion of heat in the ionization of the weak acid or base ,for weak acid /base DeltaH_("neutrlzation")^(@)=DeltaH_("ionization")^(@)+ Delta _(r)H^(@)(H^(+)+OH^(-)to H_(2)O) What is DeltaH^(@) for complate neutralization of strong diacidic base A(OH)_(2)by HNO_(3) ?

pK_(a) of a weak acid is defined as :

Why is heat of neutralisation for a strong acid and strong base constant ?

The enthalpy of neutralisation of a strong acid by a strong base is -57.32 kJ mol^(-1) . The enthalpy of formation of water is -285.84 kJ mol^(-1) . The enthalpy of formation of hydroxyl ion is

Acetic acid is a weak acid because