The temperature rises when equal amounts of acid and base are mixed. What is the reason?
Answer and explanation
Correct answer: Heat may be released during neutralisation
When an acid reacts with a base, a neutralisation reaction occurs, producing salt and usually water. The formation of water from hydrogen ions and hydroxide ions is commonly exothermic: H⁺ + OH⁻ → H₂O, with heat released. Therefore the solution temperature can rise. Equal amounts do not change the governing concept; the temperature depends on concentrations and reaction conditions.
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What is the correct answer to this question?
Heat may be released during neutralisation
Why is this the correct answer?
When an acid reacts with a base, a neutralisation reaction occurs, producing salt and usually water. The formation of water from hydrogen ions and hydroxide ions is commonly exothermic: H⁺ + OH⁻ → H₂O, with heat released. Therefore the solution temperature can rise. Equal amounts do not change the governing concept; the temperature depends on concentrations and reaction conditions.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Acids, Bases, and Salts.
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