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Do fossil fuels have a higher or lower energy content than a similar mass of nuclear fuel?
Total energy as expressed in Einsteins equation E=mc2 reveals that they are identical because the masses are identical and c is a constant. With present technology you can extract more energy from a given mass of nuclear fuels (in a nuclear reactor) than the same mass of fossil fuel in a thermoelectric generating plant.
What is the use of plutonium in a nuclear bomb?
Plutonium is used as the fissile material in the core of a nuclear bomb. When a critical mass of plutonium is rapidly brought together, a chain reaction occurs, releasing a large amount of energy in the form of a nuclear explosion.
Which is the best fuel for nuclear bomb plutonium or uranium?
Plutonium is the preferred fuel for nuclear bombs due to its greater efficiency in sustaining a nuclear chain reaction compared to uranium. Its higher fissionability and smaller critical mass make it the more suitable choice for achieving the explosive yield required in nuclear weapons.
Used as an explosive ingredient in nuclear weapons?
Uranium-235 is used as the fissile material in nuclear weapons. When a uranium-235 atom undergoes fission, it releases a large amount of energy, which can create a nuclear explosion. The critical mass required for a nuclear chain reaction to occur is achieved by compressing uranium-235 using conventional explosives.
What is Lack of critical mass?
Lack of critical mass refers to a situation where a certain level of participation, support, or resources is needed for a particular activity or initiative to be successful or sustainable. Without this critical mass, the effort may not be able to achieve its intended outcomes or impact.
Do nuclear reactors have critical mass?
We know that critical mass can be achieved in a nuclear reactor. If it could not, we'd not be able to get a chain reaction and generate heat to generate power. Reactors don't have critical mass when the control rods are in, but pull the rods, start the reactor up and away you go!
Minimum mass of material requied for the nuclear chain reaction to occur in a nuclear bomb is called?
The critical mass
Does critical mass depend on polarity?
No, critical mass does not depend on polarity. Critical mass is simply the amount of fissile material needed to sustain a nuclear chain reaction. Polarity, which is a property of molecules, does not play a role in determining critical mass.
Do fossil fuels have a higher or lower energy content than a similar mass of nuclear fuel?
Total energy as expressed in Einsteins equation E=mc2 reveals that they are identical because the masses are identical and c is a constant. With present technology you can extract more energy from a given mass of nuclear fuels (in a nuclear reactor) than the same mass of fossil fuel in a thermoelectric generating plant.
What is caused when critical mass is reached?
When critical mass is reached, a self-sustaining chain reaction occurs, leading to a nuclear explosion in the case of nuclear fission. In social contexts, critical mass refers to the point at which a movement or idea gains enough momentum to be self-sustaining and bring about significant change.
If you have a critical mass of a radioactive material what can occur?
In a critical mass, the material involved starts to undergo fission because of the presence of a dense neutron flux. The fission produces neutrons, which add to the neutron flux. This causes a great release of heat. Reaching critical mass does not imply a powerful nuclear explosion. A powerful nuclear explosion develops when critical mass is attained for a long enough time for the majority of the nuclear material to get involved. This is a very tricky thing to do and does not happen accidentally. What can happen accidentally is a nuclear "pop," a sort of small explosion which throws the material apart, destroying the critical mass, and possibly producing a lot of pollution. (This was not what happened at Chernobyl, which was steam and chemical.)
What is subcritical mass?
Subcritical mass refers to an amount of fissile material that is not enough to sustain a nuclear chain reaction. This means the material does not reach a critical mass where nuclear fission reactions can continue in a self-sustaining manner. In order for a sustained chain reaction to occur, the material must exceed the critical mass threshold.
What are in nuclear bombs?
Enough of either U235 or PU239 to form a critical mass and hence a large explosion
What is the quantity of fissionable material called that CANNOT sustain a nuclear reaction?
Subcritical mass is the quantity of fissionable material that cannot sustain a nuclear reaction. When the amount of fissionable material is below the critical mass required to sustain a chain reaction, it is considered subcritical.
Critical mass is the of material required to produce a chain reaction?
minimum amount
Critical mass depends on what?
The Purity && The Shape AND size density
What is the amount of fissionable material required to continue a reaction at a constant rate?
The amount of fissionable material required to sustain a nuclear reaction at a constant rate is determined by the material's critical mass. The critical mass is the minimum amount of fissionable material needed to sustain a chain reaction, and it varies depending on the material and the reactor design. By controlling factors such as neutron moderation and absorption, reactor operators can adjust the critical mass to maintain a steady reaction rate.
