Heat is released when acid is mixed with water. What type of process is this?
Answer and explanation
Correct answer: Exothermic
When an acid is mixed with water (diluted), heat is released to the surroundings; therefore, it is an exothermic process. An endothermic process absorbs heat from the surroundings, so option B is incorrect. Exam tip: always add acid slowly to water, not water to acid.
Frequently asked questions
What is the correct answer to this question?
Exothermic
Why is this the correct answer?
When an acid is mixed with water (diluted), heat is released to the surroundings; therefore, it is an exothermic process. An endothermic process absorbs heat from the surroundings, so option B is incorrect. Exam tip: always add acid slowly to water, not water to acid.
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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