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प्रश्न
Calculate the energy released in the following nuclear fusion reaction:
\[\ce{^2_1H + ^2_1H -> ^4_2He + energy}\]
Mass of \[\ce{^2_1H = 2.014102 u}\]
Mass of \[\ce{^4_2He = 4.002604 u}\]
उत्तर
\[\ce{^2_1H + ^2_1H -> ^4_2He + energy}\]
Mass of \[\ce{^2_1H + ^2_1H = 2 × (2.014102)u}\]
= 4.028204u
Mass defect (Δm) = (4.028204 – 4.002604)u
= 0.0256u
∴ Energy released = (Δm) × c2
= 0.0256 × 931 MeV
= 23.8336 MeV (1u × c2 = 931 MeV)
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संबंधित प्रश्न
Identify nuclear fusion reaction.
Explain in brief, nuclear fission.
Balance the nuclear reaction:
\[\ce{^118_54Xe -> ? + I^118_54}\]
Write one point that differentiates nuclear reactions from chemical reactions.
Write the fusion reactions occurring in the Sun and stars.
Calculate the energy in MeV released in the nuclear reaction \[\ce{^174_77Ir -> ^170_75Re + ^4_2He}\]
Atomic mass: Ir = 173.97 u, Re = 169.96 u and He 4.0026 u
Read the passage given below and answer the questions that follow.
|
Mr. Ravi had been living in a small town with his family for many years. He decided to shift to a city when he learnt that a nuclear power plant would be built in his town. His son Prakash, who was a science teacher, did not agree with his father’s decision. Prakash explained to his father how mass defects during nuclear fission released energy. He assured his father that the authorities were taking all the possible safety measures to avoid any kind of nuclear mishap. Mr. Ravi understood the scientific explanation given by his son and decided not to shift to another place. |
- What is the cause of energy generation of a nuclear reactor during nuclear fission?
- Write one nuclear reaction for nuclear fission that takes place in a nuclear reactor.
- Give the formula for the energy generation that takes place in the nuclear reactor.
In a nuclear reactor, state the use of graphite rods.
In a nuclear reactor, state the use of cadmium rods.
Find the energy released during the following fission reaction.
\[\ce{_92^235U + _0^1n-> _92^236U->_36^90Kr + _56^143Ba + 3 _0^1n}\]
| Mass(u) | |
| 235U | 235.0439 |
| 90Kr | 89.9195 |
| 143Ba | 142.9206 |
| 1n | 1.0087 |
