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प्रश्न
What is nuclear energy? Name the process used for producing electricity using the nuclear energy.
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उत्तर १
When a heavy nucleus is bombarded with slow neutrons, it splits into two nearly equal light nuclei with a release of tremendous amount of energy. In this process of nuclear fission, the total sum of masses of products is less than the total sum of masses of reactants. This lost mass gets converted into energy. The energy so released is called nuclear energy.
Principle: The heat energy released due to the controlled chain reaction of nuclear fission of uranium-235 in a nuclear reactor is absorbed by the coolant which then passes through the coils of a heat exchanger containing water. The water in heat exchanger gets heated and converts into steam. The steam is used to rotate the turbine which in turn rotates the armature of a generator in a magnetic field and thus produces electricity.
उत्तर २
Nuclear energy is the energy released by the atom’s nucleus during a nuclear reaction. It is an exothermic process. The process of Nuclear fission is used to produce electricity.
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संबंधित प्रश्न
Fill in the following blank with suitable word:
Splitting of a heavy nucleus into two lighter nuclei is called ........
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
Which of the following statements are correct?
Neutrons have
The element X has an atomic mass number of 238 and an atomic number
of 92. It emits an alpha particle forming an element y. Y can be represented
by
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 charge and mass of α-particle.
How does the position of an element change in the periodic table when it emits out a beta particle?
What are beta rays and gamma rays?
How many alpha and beta particles are emitted when Uranium nucleus 9U238 decays to Lead If 82Pb206 ?
Give scientific reason.
It is absolutely necessary to control the fission reaction in nuclear power plants.
