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प्रश्न
Write the demerits of a nuclear energy plant.
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उत्तर
- Improper nuclear-waste storage and disposal can result in environmental contamination.
- Accidental leakage of nuclear radiation can lead to lethal disaster.
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संबंधित प्रश्न
What is nuclear fission? Explain with an example. Write the equation of the nuclear reaction involved.
The following question are about the nuclear reactor of a power plant.
What is the purpose of using the graphite moderator?
How does inserting the control rods in the graphite core affect the fission in the reactor? Explain your answer.
How is the working nuclear reactor of a power plant shut down in an emergency?
One MeV of nuclear energy is equivalent to:
(a) 1.6 × 10−13 J
(b) 1.6 × 10−19 J
(c) 1.6 × 10−16 J
(d) 1.6 × 10−15 J
The heat energy released during nuclear fission and fusion is due to the:
(a) conversion of stored chemicals into energy
(b) conversion of momentum into energy
(c) conversion of mass into energy
(d) conversion of magnetism into energy
A nuclear reaction is represented by the following equation:
`""_92^235U+_0^1n-> _56^139Ba+_36^94Kr+xc+E`
What type of bomb is based on similar type of reaction?
A nuclear reaction is represented by the equation:
`""_1^2H+_1^2H->_2^3He+xc+E`
State two conditions under which such a reaction takes place.
Explain why, in a nuclear reactor, the chain reaction stops if the control rods are fully inserted into the graphite.
List any four characteristics of a good fuel.
Explain briefly what changes take place within the nuclei when beta particles are emitted by a radioactive substance.
What precautions must be taken for the safe disposal of nuclear waste?
Complete the following fission reaction:
\[\ce{_92U^235 _0n^1 -> _aSb^133 + _41Co^b + 4_0n_1 + energy}\]
Write down the values of a and b.
An isotope of uranium is 92Y238, i.e., it has mass number 235 and atomic number 92.
Mention the relationship between 92U235 and 92U238.
Hydroelectric power station : Water stored in dams : : Nuclear power station : ____________
Write a short note.
Problems due to nuclear power plant
Complete the following nuclear changes:
\[\ce {^238_92 P ->\underset{-}-{Q} + ^4_2He->\underset{-}-{R} + ^0_-1e}\]
Give scientific reasons.
It is absolutely necessary to control the fission reaction in nuclear power plants.
Give scientific reasons.
It is absolutely necessary to control the fission reaction in nuclear power plants.
