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Which of the following statements is true about an exothermic reaction?

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Question: Which of the following statements is true about an exothermic reaction?

Options:

  1. It absorbs heat
  2. It releases heat
  3. It has a positive enthalpy change
  4. It is always spontaneous

Correct Answer: It releases heat

Solution: 

An exothermic reaction releases heat, resulting in a negative enthalpy change.

Which of the following statements is true about an exothermic reaction?

Practice Questions

Q1
Which of the following statements is true about an exothermic reaction?
  1. It absorbs heat
  2. It releases heat
  3. It has a positive enthalpy change
  4. It is always spontaneous

Questions & Step-by-Step Solutions

Which of the following statements is true about an exothermic reaction?
Correct Answer: An exothermic reaction releases heat.
  • Step 1: Understand what an exothermic reaction is. It is a type of chemical reaction that releases heat.
  • Step 2: Know that when heat is released, the temperature of the surroundings increases.
  • Step 3: Learn about enthalpy change, which is a measure of heat content in a system.
  • Step 4: In an exothermic reaction, the enthalpy change is negative because the system loses heat to the surroundings.
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