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Heat of neutralisation of a strong acid and strong base is always A. 13.7 Kcal/mol B. 9.6 Kcal/mol C. 6 Kcal/mol D. 11.4 Kcal/mol

Heat of neutralisation of a strong acid and strong base is always
A. 13.7 Kcal/mol B. 9.6 Kcal/mol C. 6 Kcal/mol D. 11.4 Kcal/mol

Grade:Upto college level

2 Answers

Saurabh Koranglekar
askIITians Faculty 10335 Points
3 years ago
Enthalpy of neutralisation:- It is the enthalpy charge that takes place when 1g-equivalent of an acid (or base) in neutralised by 1 g-equivalent of a base (or acid) in dilute solution.
The enthalpy of neutralization of any strong acid and strong base is always constant, i.e. 57.1 kJ because both the acid and base undergo complete ionization.
Vikas TU
14149 Points
3 years ago
∵ΔG∘=ΔH∘−TΔS∘
∴ΔH∘ for H2O⇔H++OH− is+13.7kcal
∴ΔS∘=ΔH∘−ΔG∘ / T
=(+13.7+19.14)/298=110.2calK^−1mol^−1
…....................................................

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