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CGP EDU Academic Team
Published on: August 13, 2026
The standard enthalpy of neutralization of KOH with HCN and HCl in dilute solution is –2480 cal.mol –1 and –13.68 kcalmol –1 respectively. Find the enthalpy of dissociation of HCN at the same temperature.
Text Solution
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CHECK THE SOLUTION.
(11.2 Kcal )
Δ H dissociation(WA) = – Δ H neut(SA + SB) + Δ H neut(WA + SB)
Δ H diss(HCN) = +13.68 – 2.48 = 11.2 Kcal
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