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What are Controlled nuclear chain reactions?
Those reactions that take place in functioning nuclear reactors (i.e not Chernobyl or Fukushima when the accidents happened).
How is a chain reaction in a nuclear reactor controlled?
Nuclear reactors contain rods made of materials which will absorb neutrons. This reduced the cascade of neutrons which are responsible for the chain reaction.
Which of the following are differences between nuclear reactors and nuclear bombs?
-both have critical mass -both use chain reactions A P E X renaa
What is Nuclear reactors and it's parts and functions?
it is a device in which chain reaction is initiate or controlled $generate heat energy typcially for power
What control the chain reaction in a nuclear reactor?
The reason a nuclear chain reaction occurs is that one of the by products of a single reaction: the neutrons can start reactions of their own. So how do you stop a chain reaction? Stop these neutrons from causing any more reactions. This is done in nuclear reactors by placing control rods into the reactor core. These control rods are made of elements that can absorb the high energy neutrons without reacting themselves. Therefore, by moving these rods in and out of the reactor, the rate of reaction in a nuclear reactor can be easily controlled.
What are the similarities between nuclear reactors and nuclear bombs?
Both have critical mass, and create energy from a fission chain reaction. In nuclear bombs, the chain reaction is uncontained and spreads to all the fissionable material nearly instantaneously.
Is moderation of neutrons always used to slow nuclear fission?
No, moderation of neutrons is not always used to slow nuclear fission. In some types of nuclear reactors, such as fast breeder reactors, fast neutrons are intentionally not moderated to slow down the fission process. These reactors operate using fast neutrons to sustain a chain reaction. However, in most commercial nuclear reactors, moderation of neutrons is employed to slow down the fission process and maintain a controlled chain reaction.
Functions of nuclear reactors?
One of the primary functions of a nuclear reactor is to maintain a chain reaction. Also, nuclear reactors are meant to provide a steady flow of neutrons.
Do nuclear chain reactions happen in only uranium?
The most common fuels used in nuclear chain reactions are 235U (uranium) and 239Pu (plutonium).
Can the chain reaction of nuclear fission be stopped or controlled?
The chain reaction can be controlled, and it can be stopped. It is controlled in a nuclear power plant, and it is stopped when the plant shuts down, as it does periodically for refueling.
Do nuclear reactors burn uranium or do they split the atoms?
Nuelceur Reactors amit radiation to the uraninaum that they they decay, spewing out and causing a chain reaction.
What the is krypton?
In nuclear reactors, krypton can absorb enough neutrons to slow or stop the chain reaction.
