Question

the standard entropy change of the neutralization of hydracyanic acid and NaOH is ΔH° at 298 = -2460 cal. given that the standard entropy change of neutralization of Hcl and NaOH isΔH= -13.71 kcal . what is the heat of ionization of HCN?

Answer 1

Answer:

11.25 Kcal

Explanation:

Enthalpy of neutralisation of strong acid and strong base is -13710 Cal

But enthalpy of neutralisation of HCN and NaOH is -2460 Cal

=> enthalpy of ionisation is -2460-(-13710) Cal

=11250 cal