Advertisements
Advertisements
Question
Explain with a diagram the step-by-step energy conversion in a nuclear power plant.
Advertisements
Solution
In a nuclear power plant, energy is released by the fission of the nuclei of radioactive elements such as uranium or plutonium. This energy is used to produce steam at high temperature and pressure. The kinetic energy of the steam rotates the turbine. The rotating turbine drives the generator, which produces electricity.
Energy conversion:
Nuclear Energy → Thermal Energy → Kinetic Energy → Mechanical Energy → Electrical Energy.
APPEARS IN
RELATED QUESTIONS
The calorific value and ignition temperature of fuel A are 55 kJ/g and 80°C, respectively. These values for fuel B are 80 kJ/g and 10°C, respectively. On burning, the fuel A produces CO2 and H2O while the fuel B produces CO2 , CO and SO2. Give three points of relative and disadvantages of these two fuels.
Which particles bring about the fission of uranium-235?
Why are very high temperatures required for fusion to occur?
What is the source of energy of the sun and other stars?
In a nuclear power plant, coolant is a substance:
(a) which cools the hot, spent steam to condense it back to water
(b) which transfers heat from reactor to water in heat exchanger
(c) which is boiled to make steam to turn the turbine
(d) which cools the generator coils to prevent their overheating.
Which of the following can undergo nuclear fusion reaction?
(a) uranium
(b) deuterium
(c) barium
(d) krypton
Which of the following statements are correct?
Neutrons have
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
Which one of the following statements about alpha and beta particles is
correct?
What is the meaning of mass number?
What do you mean by atomic number?
'Radioactivity is a nuclear phenomenon'. Comment on this statement.
Complete the following nuclear change:
\[\ce{_92P^238->[-α] ...P1 ... ->[-β]...P2 ... ->[-β] ... P3 ...}\]
State, giving reason, whether the following nuclear decay are allowed or not?
\[\ce{_Z^AP -> _{Z-2}^AY + _2^4He}\]
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?
How many alpha and beta particles are emitted when the uranium nucleus 92U238 decays to Lead If 82Pb206?
In nuclear power plants, neutrons are bombarded on atoms of __________.
Answer in one sentence.
Write the merits of atomic energy.
Express 1 a.m.u. in MeV.
