Which is the best definition of heat of neutralization?
(A)The heat absorbed when one gram molecule of an acid is neutralized by one gram molecule of a base in dilute solution at a stated temperature
(B)The heat set free or absorbed when one gram atom of an acid is neutralized by one gram atom of a base at a stated temperature
(C)The heat set free or absorbed when a normal solution containing one gram-equivalent of an acid is neutralized by a normal solution containing one gram-equivalent of a base at a stated temperature
(D)The heat set free when one gram-equivalent of an acid is neutralized by one gram-equivalent of a base in dilute solution at a stated temperatureCorrect
Answer: (D)
Solution
Neutralisation of a strong acid by a strong base is always exothermic (heat is "set free", never
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