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प्रश्न
Why is a very high temperature required for the process of nuclear fusion? State the approximate temperature required.
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उत्तर
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.
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संबंधित प्रश्न
What other name is given to nuclear fusion? Give reason.
- Write one nuclear fusion reaction.
- State the approximate value of energy released in the reaction mentioned in part (a).
- Give reason for the release of energy stated in part (b).
Complete the following fusion reaction:
\[\ce {^3_2He + ^2_1H -> ^\underline{}_2He + ^\underline{}_1H + energy}\]
State one similarity in the process of nuclear fission or fusion.
The average energy released in each fusion reaction is about ______ J.
Elements having atomic number greater than 83 can undergo nuclear fusion.
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?
Give one example of nuclear fusion.
