Question

To determine the enthalpy of neutralization of hcl and naoh

Answer 1

Heat is evolved during neutralisation of an acid with an alkali. Known volumes of the standard
solutions of an acid and alkali are mixed and the change in temperature is observed and from this, the enthalpy of neutralisation is calculated. Enthalpy of neutralisation is the heat evolved when one gram equivalent of the acid is completely neutralised by a base in dilute solution.

Answer 2

The enthalpy of neutralisation of HCl with NaOH is……… kJ. Note: Enthalpy of neutralisation of all strong acids with strong bases and vice versa is – 57.3 kJ. It may be noted that 1000 mL of 1 M HCl contains 1 mole (or 1 equivalent) of HCl.