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प्रश्न
Explain with diagram step-by-step energy conversion in Nuclear Power Plant.
उत्तर
Nuclear power plants consist of nuclear reactors. These reactors use uranium rods as fuel and heat is generated by the process of nuclear fission. Neutrons smash into the nucleus of the uranium atoms, which roughly split into half and release energy in the form of heat. Carbon dioxide gas is pumped through the reactor to take the heat away. The hot gas then heats water to form steam. This steam drives the turbines of generators to produce electricity. Thus, the steps of energy conversion are:
Nuclear energy→Thermal energy →kinetic energy in steam→kinetic enegry in turbine
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संबंधित प्रश्न
What are the advantages of nuclear energy?
What is a fuel? Give five examples of fuels.
Name the type of nuclear reaction which is involved in the working of:
an atom bomb.
Write Einstein's mass-energy equation. Give the meaning of each symbol which occurs in it.
The following question are about the nuclear reactor of a power plant.
What is the purpose of using the graphite moderator?
In the reactor of a nuclear power plant, name the material which is used:
(a) as a moderator
(b) to absorb radiations
(c) in the fuel rods
(d) in the control rods
(e) to carry away heat
One type of energy which has not been controlled so far is:
(a) ocean thermal energy
(b) nuclear fusion energy
(c) geothermal energy
(d) nuclear fission energy
A nuclear reaction is represented by the equation:
`""_1^2H+_1^2H->_2^3He+xc+E`
Name the process represented by this equation and describe what happens during this reaction.
What do you understand by radioactive decay? An isotope of Uranium `""_92^238 "U"` is radioactive and changes into Thorium 92 by the emission of an alpha particle. Write a symbolic equation for this decay process.
State, giving reason, whether the following nuclear decay is allowed or not?
\[\ce{_Z^AX -> _Z^AQ + γ}\]
What changes occur in the nucleus of a radioactive element when it emits an alpha particle? Show by an example?
What will an alpha particle change into when it absorb two electrons.
State charge and mass of β-particle.
What happens to the atomic number of an element when it emit a beta particle.
A certain nucleus X has a mass number 14 and atomic number 6. The nucleus X changes to `"_7Y^14` after the loss of a particle. Name the particle emitted.
When a neutron is bombarded on an atom of uranium, ____________ neutrons generated in this process.
In nuclear power plants, the chain reaction cannot be controlled.
Write the merits of nuclear energy.
Write the demerits of a nuclear energy plant.
