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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
Compare and contrast bio-mass and hydro electricity as sources of energy.
One of the following is not a characteristic of a good fuel. This is:
(a) high calorific value
(b) no emission of smoke
(c) smooth burning
(d) high ignition temperature
State one use of nuclear fission reactions.
One eV (electron volt) of nuclear energy is equivalent of:
(a) 1.6 × 10−14 J
(b) 1.6 × 10−12 J
(c) 1.6 × 10−19 J
(d) 1.6 × 10−13 J
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
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?
The mass numbers of four elements A, B, C and D are 2, 20, 135 and 235, respectively. Which one of them will be most suitable to make:
(i) an atom bomb,
Name the process used to harness nuclear energy these days. Explain it briefly. List two advantages of using nuclear energy in place of fossil fuels.
An element P has an atomic mass of 239 and an atomic number of 92. It
emits a beta particle forming an element Q. Q can be represented by
Name the following nuclear reaction:
\[\ce {^3_1H + ^2_1H -> ^4_2He + ^1_0n + γ}\]
A radioactive nucleus undergoes a series of decays according to the sequence
\[\ce{X->[β] X1->[α] X2->[α]X3}\]
If the mass number and atomic number of X3 are 172 and 69 respectively, what is the mass number and atomic number of X?
A nucleus of an element has the symbol 84P202, and emits an α-particle and then a β-particle. The final nucleus is bQa Find a and b.
What are beta rays and gamma rays?
An isotope of uranium is 92Y238, i.e., it has mass number 235 and atomic number 92.
Mention the relationship between 92U235 and 92U238.
In nuclear power plants, turbines working on solar panels are used.
Write the problems associated with hydroelectric power projects.
Which is the process used to harness nuclear energy these days? Explain it briefly.
Give scientific reasons.
It is absolutely necessary to control the fission reaction in nuclear power plants.
Express 1 a.m.u. in MeV.
