Advertisements
Advertisements
प्रश्न
What is nuclear energy? Name the process used for producing electricity using the nuclear energy.
Advertisements
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.
APPEARS IN
संबंधित प्रश्न
What is a fuel? Give five examples of fuels.
What will happen if slow moving neutrons are made to strike the atoms of a heavy element `''235_92U`? What is the name of this process?
How is the working nuclear reactor of a power plant shut down in an emergency?
The 'coolants' which can be used in the reactor of a nuclear power station are:
(a) liquid mercury and nitrogen dioxide
(b) liquid sodium and carbon dioxide
(c) liquid ammonia and carbon monoxide
(d) liquid boron and uranium oxide
A nuclear power plant is working normally. What would you do if the reactor core suddenly got too hot?
State, giving reason, whether the following nuclear decay are allowed or not?
\[\ce{_Z^AX ->_Z^{A-1}Y + _-1^0e}\]
When a neutron is bombarded on an atom of uranium, ____________ neutrons generated in this process.
Hydroelectric power station : Water stored in dams : : Nuclear power station : ____________
The disposal of nuclear waste safely is a big challenge before scientists.
Express 1 a.m.u. in MeV.
