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Which of the following represents an endothermic reaction?

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Question: Which of the following represents an endothermic reaction?

Options:

  1. Combustion of gasoline
  2. Dissolving ammonium nitrate in water
  3. Respiration
  4. Rusting of iron

Correct Answer: Dissolving ammonium nitrate in water

Solution: 

Dissolving ammonium nitrate in water absorbs heat, making it an endothermic reaction.

Which of the following represents an endothermic reaction?

Practice Questions

Q1
Which of the following represents an endothermic reaction?
  1. Combustion of gasoline
  2. Dissolving ammonium nitrate in water
  3. Respiration
  4. Rusting of iron

Questions & Step-by-Step Solutions

Which of the following represents an endothermic reaction?
  • Step 1: Understand what an endothermic reaction is. It is a reaction that absorbs heat from its surroundings.
  • Step 2: Identify a common example of an endothermic reaction. One example is dissolving ammonium nitrate in water.
  • Step 3: Recognize that when ammonium nitrate dissolves, it takes in heat, which cools the solution.
  • Step 4: Conclude that since this process absorbs heat, it is classified as an endothermic reaction.
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