Enthalpy of neutralization is always a constant when a strong acid is neutralized by a strong base: account for the statement.

Enthalpy of neutralization is always a constant when a strong acid is

1.	Enthalpy of neutralization is always a constant when a strong acid is neutralized by a strong base: account for the statement.
Answer» Solution :STRONG acids and strong bases exist in the fully ionised form inaqueous solution as below: `H_(3)O^(+)+Cl^(-)+Na^(+)+OH^(-)rarrNa^(+)+Cl+2H_(2)O` (or) `H_(3)O_((aq))^(+)+OH_((aq))^(-)rarr2H_(2)O(1)^(@)` `DeltaH^(@)=-57.32KJ.` The `H^(+)`ions produced in water by the ACID molecules exist as `H_(3)O^(+)` Thus enthalpy change change of NEUTRALIZATION is essentially due to enthalpy change per mole of water formed from `H_(3)O^(+) and OH-`. Therefore, irrespective of the chemical natural. the enthalpy of neutralization of the strong acid by Strong base is a constant value which is equal to -57 . 32 kJ.