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What is the energy released in nuclear fusion primarily due to? (2023)

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Question: What is the energy released in nuclear fusion primarily due to? (2023)

Options:

  1. Mass defect
  2. Chemical bonds
  3. Nuclear forces
  4. Electromagnetic interactions

Correct Answer: Mass defect

Exam Year: 2023

Solution: 

The energy released in nuclear fusion is primarily due to the mass defect, where the mass of the resulting nucleus is less than the sum of the masses of the individual nucleons.

What is the energy released in nuclear fusion primarily due to? (2023)

Practice Questions

Q1
What is the energy released in nuclear fusion primarily due to? (2023)
  1. Mass defect
  2. Chemical bonds
  3. Nuclear forces
  4. Electromagnetic interactions

Questions & Step-by-Step Solutions

What is the energy released in nuclear fusion primarily due to? (2023)
  • Step 1: Understand what nuclear fusion is. It is a process where two light atomic nuclei combine to form a heavier nucleus.
  • Step 2: Recognize that during this process, some mass is lost. This lost mass is called the mass defect.
  • Step 3: Learn that the mass defect occurs because the total mass of the resulting nucleus is less than the sum of the masses of the individual particles (nucleons) that made it.
  • Step 4: Know that this lost mass is converted into energy according to Einstein's equation E=mc², where E is energy, m is mass, and c is the speed of light.
  • Step 5: Conclude that the energy released in nuclear fusion is primarily due to this mass defect.
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