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Why is a chain reaction more likely in a big pieces of uranium than its in a small piece?
Wiki User
∙ 8y ago
A small piece has more surface area compared to its mass; as a result, more neutrons will escape before they can participate in the chain reaction.
Wiki User
∙ 8y ago
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Is a chain reaction more likely in two separate pieces of uranium or in the same pieces stuck together?
separate ------- Depending on the total mass of uranium, purity of uranium, physical form, enrichment, geometry, etc.
Is a chain reaction more likely in two separate pieces of uranium or in the 2 combined?
Depending on the total mass of uranium and the enrichment, geometry, purity, etc.
Chain reaction results when a uranium atom is struck by?
Thermal neutrons
How do you build a homemade chain reaction?
This would be very inadvisable. The simplest way would be to reproduce the 1942 Chicago pile, but how would you get the uranium?
What the similarities and the differences between the reaction in uranium-235 and the reaction in Thorium?
Uranium-235 is a fissile isotope: can react with thermal neutrons (fission) to sustain a chain reaction.Thorium-232 is a fertile material: can absorb neutrons without fission and is transformed in the fissile isotope U-233.
Is a chain reaction more likely in two separate pieces of uranium or in the same pieces stuck together?
separate ------- Depending on the total mass of uranium, purity of uranium, physical form, enrichment, geometry, etc.
Is a chain reaction more likely to occur in two separate pieces of uranium-235 or in the same two pieces stuck together?
Stuck together.
Is a chain reaction more likely in two separate pieces of uranium or in the 2 combined?
Depending on the total mass of uranium and the enrichment, geometry, purity, etc.
Which will leak more neutrons two separate pieces of uranium or the same pieces stuck together?
The pieces stuck together. This is because there will be more of a chain reaction, so there will be more neutrons available to leak in the first place.
If a piece of uranium is flattened into a pancake shape will this make a supercritical chain reaction more or less likely?
It would make a chain reaction less likely. A high density is needed to maintain a chain reaction. The flat pancake does not have the right shape as neutrons will be able to pass through with only a very low probability of hitting a nucleus.
What energy source is used for nuclear fuel rods?
uranium. When water is heated, it causes a chain reaction that turns the uranium to plutonium.
Chain reaction results when a uranium atom is struck by?
Thermal neutrons
Why does a chain reaction not occur in uranium mines?
Mainly because only about 0.7% of uranium is the isotope uranium-235, which is easily fissionable. It is believed that in Earth's remote past, there were such chain reactions - natural reactors - at a time when the percentage of U-235 was higher.
What term describes the reaction process in a fission reaction?
another name for nuclear fission is: E=MC squared
What do fission of uranium produce?
Uranium fission creates a chain reaction that initiates a chain reaction that grows exponentially into a massive conversion of the potential energy inside the uranium atom into kinetic energy in the form of an explosion - a nuclear explosion. These are the bombs that ended WW2. Today we can split H atoms, which release significantly more energy.
Why is it that uranium ore does not spontaneously undergo a chain reaction?
Uranium ore contains only a small percentage of uranium for one thing, but also natural uranium contains only 0.7 percent U235. Even pure natural uranium will not cause a chain reaction unless it is surrounded by a moderator such as pure graphite or heavy water. Ordinary water will not allow this to happen.
What nucealer bombs are made of?
Basically, nuclear weapons are made from uranium or plutonium material and hydrogen as a chain reaction nucleus.
