Advertisements
Advertisements
Question
Why is a very high temperature required for the process of nuclear fusion? State the approximate temperature required.
Solution
When two nuclei approach each other, due to their positive charge, the electrostatic force of repulsion between them becomes too strong that they do not fuse. Thus, nuclear fusion is not possible at ordinary temperature and ordinary pressure.
Hence to make the fusion possible, a high temperature of approximately 107 K and high pressure is required. At such a high temperature, due to thermal agitations both nuclei acquire sufficient kinetic energy so as to overcome the force of repulsion between them when they approach each other, and so they get fused.
APPEARS IN
RELATED QUESTIONS
State one similarity in the process of nuclear fission or fusion.
Give two examples of nuclear fusion.
The average energy released in each fusion reaction is about ______ J.
Match: IV
| a. | Uncontrolled fission reaction | Hydrogen Bomb |
| b. | Fertile material | Nuclear Reactor |
| c. | Controlled fission reaction | Breeder reactor |
| d. | Fusion reaction | Atom bomb |
Use the analogy to fill in the blank.
Nuclear Fusion : Extreme temperature, Nuclear Fission : _______
Mark the correct choice as
- Assertion: Extreme temperature is necessary to execute nuclear fusion.
- Reason: In a nuclear fusion, the nuclei of the reactants combine releasing high energy.
Use the analogy to fill in the blank.
Nuclear Fusion: Extreme temperature, Nuclear Fission: ___________
Use the analogy to fill in the blank.
Nuclear Fusion: Extreme temperature, Nuclear Fission: ______.
Use the analogy to fill in the blank
Nuclear Fusion : Extreme temperature, Nuclear Fission : ______.
What is nuclear fusion?
