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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.
What is the amount of radioactive material needed to sustain a chain reaction in order to provide useful energy called?
The critical mass.
What is the critical mass of uranium-238?
Each isotope has a different critical mass. U235 is used because the mass needed to cause a reaction is smaller than almost all other isotopes. This critical mass is calculated as( 3.001 x 9.987 to the 11th power) Divided by the weight of one nuclei X 2.5675 (x 10 to the 24th power) divided by mass. This equals 7.702 X 10 to the 13th power divided by mass. You can tell by this calculation that critical mass for u235 is very low at about 1.3 kg. Best regards, Bruce
What is the minimum mass of a fissionable isotope in which a nuclear chain reaction can occur?
A critical mass is the smallest amount of fissile material needed for a sustained nuclear chain reaction. The critical mass of a fissionable material depends upon its nuclear properties (e.g. the nuclear fission cross-section), its density, its shape, its enrichment, its temperature and its surroundings.The minimum mass for a particular fissionable isotope will always be a sphere, as that is the shape which will lose the least neutrons for a given mass. The behavior of a sphere can be affected by its surroundings, if a neutron reflector is present this will reduce the amount needed. The easiest way to compare materials is to consider a bare sphere with no reflector. In this case Uranium 235 requires a mass of 52 kg and a sphere of diameter 17 cm. Plutonium 239 requires a mass of 10 kg and a sphere 9.9 cm diameter.The Wikipedia article 'Critical Mass' gives a table of other isotopes, but the above two are of most practical interest
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.
What is upper sub-critical limit for U235 mass?
The critical mass depends on the shape; I don't think there is an upper limit to that.For the case of a sphere, the critical mass for U-235 is 52 kg. The corresponding diameter of the sphere is 17 cm.
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.
When was Critical Mass - Catholic rock - created?
Critical Mass - Catholic rock - was created in 1996.
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.
When was Critical Mass - Threshold album - created?
Critical Mass - Threshold album - was created on 2002-09-02.
What is the amount of radioactive material needed to sustain a chain reaction in order to provide useful energy called?
The critical mass.
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!
What is not a factor in determining critical mass is?
The color of the bicycles is not a factor in determining critical mass. Critical mass refers to the minimum number of participants needed for a collective action to be effective, typically in the context of a protest or demonstration involving cyclists. The factors that do influence critical mass include the number of participants, their level of commitment, and the visibility of the event.
What is critical mass according to wolverine?
kingpen
What are the ratings and certificates for Critical Mass - 2001?
Critical Mass - 2001 is rated/received certificates of: Australia:M Germany:16 New Zealand:M USA:R
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.
What is critical mass Spider-Man?
Critical Mass is a mutant in the video game Spider Man and the Web of Shadows. He grills Spider Man with questions about his past.
