Advertisements
Advertisements
प्रश्न
Write the fusion reactions occurring in the Sun and stars.
उत्तर
Fusion reactions occurring in the Sun and stars are can be represented as,
- \[\ce{^1_1H + ^1_1H -> ^2_1H + ^0_1e}\]
- \[\ce{^1_1H + ^2_1H -> ^3_2He}\]
- \[\ce{^3_2He + ^3_2He -> ^4_2He + 2^1_1He}\]
- \[\ce{^3_2He + ^1_1H -> ^4_2He + ^0_1e}\]
APPEARS IN
संबंधित प्रश्न
Identify nuclear fusion reaction.
Choose the correct option.
The process by which nuclei having low masses are united to form nuclei with large masses is ______.
Explain in brief, nuclear fission.
The energy produced in nuclear fusion is much larger than that produced in nuclear fission. Why is it difficult to use fusion to produce energy?
Balance the nuclear reaction:
\[\ce{^118_54Xe -> ? + I^118_54}\]
Write one point that differentiates nuclear reactions from chemical reactions.
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.
Name the type of nuclear reaction that takes place in the core of the Sun.
In a nuclear reactor, state the use of graphite rods.
In a nuclear reactor, state the use of cadmium rods.
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 \[\ce{^4_2He = 4.002604 u}\]
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 |
