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प्रश्न
Why is a very high temperature required for the process of nuclear fusion? State the approximate temperature required.
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 two difference between the process of nuclear fission and fusion.
Nuclear fusion is possible only at an extremely high temperature of the order of ____ K.
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 : ______
What is nuclear fusion?
