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What type of process is mixing acid with water?

Answer and explanation

Correct answer: Exothermic

Mixing an acid with water, especially when diluting a concentrated acid, releases heat because hydration of the ions is exothermic. A process that gives out heat to its surroundings is called an exothermic process, so option A is correct. Endothermic processes absorb heat, photolytic processes involve decomposition by light, and precipitation produces an insoluble solid; none of these describes ordinary acid dilution.

Related tags

ScienceClass10Acids Bases SaltsAcid DilutionExothermic ProcessAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And Behaviour

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