Heat is released when acid and water are mixed. What type of process is it?
Answer and explanation
Correct answer: Exothermic
The governing concept is the energy change of a process. A process that releases heat to its surroundings is called exothermic, so the described mixing of acid and water is an exothermic process and option A is correct. An endothermic process absorbs heat rather than releasing it. Decomposition means one compound breaks into simpler substances, and precipitation means formation of an insoluble solid; neither definition fits the observation.
Frequently asked questions
What is the correct answer to this question?
Exothermic
Why is this the correct answer?
The governing concept is the energy change of a process. A process that releases heat to its surroundings is called exothermic, so the described mixing of acid and water is an exothermic process and option A is correct. An endothermic process absorbs heat rather than releasing it. Decomposition means one compound breaks into simpler substances, and precipitation means formation of an insoluble solid; neither definition fits the observation.
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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