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In a reaction, mixing an acid and a base increases the solution temperature. How should this be understood?

Answer and explanation

Correct answer: Neutralisation can release heat

The reaction between an acid and a base is called neutralisation. In a typical strong-acid and strong-base reaction, hydrogen ions combine with hydroxide ions to form water, and energy is released to the surroundings: H⁺ + OH⁻ → H₂O. This released energy raises the solution temperature, so the process is exothermic in this case. The words “always absorbs” and “never react” are incorrect.

Related tags

NeutralisationExothermic ReactionHeatAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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