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Which of the following is a characteristic of an endothermic reaction?
- a)It always produces gas
- b)It absorbs heat
- c)It releases heat
- d)It occurs at room temperature
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Which of the following is a characteristic of an endothermic reaction?...
An endothermic reaction is characterized by the absorption of heat. Such reactions require energy input, which is often indicated in chemical equations by the presence of "Heat" on the reactant side.
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Which of the following is a characteristic of an endothermic reaction?...
Understanding Endothermic Reactions
Endothermic reactions are a fundamental concept in chemistry, particularly when studying energy changes during chemical reactions.
Key Characteristic: Heat Absorption
- The defining feature of an endothermic reaction is that it absorbs heat from its surroundings.
- This absorption of heat often leads to a decrease in the temperature of the surrounding environment, making the reaction feel cold to the touch.
Why Other Options are Incorrect
- Option A: Produces gas
- Not all endothermic reactions produce gas. While some do, it is not a universal characteristic.
- Option C: Releases heat
- This is characteristic of exothermic reactions, where energy is released into the surroundings.
- Option D: Occurs at room temperature
- Endothermic reactions can occur at various temperatures and are not confined to room temperature; some may require higher or lower temperatures to proceed.
Examples of Endothermic Reactions
- Photosynthesis is a classic example, where plants absorb sunlight to convert carbon dioxide and water into glucose and oxygen.
- The process of dissolving ammonium nitrate in water is another example, as it absorbs heat and causes the solution to feel cold.
In summary, option 'B' is correct because endothermic reactions are characterized by their ability to absorb heat, distinguishing them from exothermic reactions that release heat. Understanding this concept is crucial for grasping the energy dynamics in chemical processes.
Endothermic reactions are a fundamental concept in chemistry, particularly when studying energy changes during chemical reactions.
Key Characteristic: Heat Absorption
- The defining feature of an endothermic reaction is that it absorbs heat from its surroundings.
- This absorption of heat often leads to a decrease in the temperature of the surrounding environment, making the reaction feel cold to the touch.
Why Other Options are Incorrect
- Option A: Produces gas
- Not all endothermic reactions produce gas. While some do, it is not a universal characteristic.
- Option C: Releases heat
- This is characteristic of exothermic reactions, where energy is released into the surroundings.
- Option D: Occurs at room temperature
- Endothermic reactions can occur at various temperatures and are not confined to room temperature; some may require higher or lower temperatures to proceed.
Examples of Endothermic Reactions
- Photosynthesis is a classic example, where plants absorb sunlight to convert carbon dioxide and water into glucose and oxygen.
- The process of dissolving ammonium nitrate in water is another example, as it absorbs heat and causes the solution to feel cold.
In summary, option 'B' is correct because endothermic reactions are characterized by their ability to absorb heat, distinguishing them from exothermic reactions that release heat. Understanding this concept is crucial for grasping the energy dynamics in chemical processes.
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Which of the following is a characteristic of an endothermic reaction?a) It always produces gasb) It absorbs heatc) It releases heatd) It occurs at room temperatureCorrect answer is option 'B'. Can you explain this answer? for Class 8 2026 is part of Class 8 preparation. The Question and answers have been prepared according to the Class 8 exam syllabus. Information about Which of the following is a characteristic of an endothermic reaction?a) It always produces gasb) It absorbs heatc) It releases heatd) It occurs at room temperatureCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 8 2026 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following is a characteristic of an endothermic reaction?a) It always produces gasb) It absorbs heatc) It releases heatd) It occurs at room temperatureCorrect answer is option 'B'. Can you explain this answer?.
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