Controlled!
...if the reactor is working properly.
A nuclear power plant uses a slow, controlled nuclear chain reaction to heat water and generate electricity. A nuclear bomb uses a very rapid uncontrolled nuclear chain reaction in order to generate a massive explosion.
in a bomb it is an uncontrolled runaway reaction that completes in roughly 10 microseconds with the detonation of the core of the bomb.in a reactor it is a controlled steady reaction that continues for hours to years, until the operators shut the reactor down for maintenance.
The answer can certainly be more complicated and detailed, but simply- the reaction in a nuclear power point is designed to be a "slow" controlled reaction that can be monitored and "shut down", with a nuclear power point having multiple safeguards. To the contrary, a nuclear weapon's reaction is designed to be the opposite- violent and uncontrollable so that once detonation has begun, the results are catastrophic.
During the Chernobyl nuclear power plant meltdown, temperatures reached up to 4000 degrees Celsius in the reactor core due to the uncontrolled nuclear chain reaction.
The first controlled nuclear reaction took place in 1942 at the University of Chicago. The first nuclear meltdown occurred at the Chernobyl Nuclear Power Plant in 1986, which is 44 years later.
Yes, the chain reaction of nuclear fission can be controlled by using control rods made of materials like boron or cadmium that absorb neutrons, thus regulating the rate of fission. Additionally, cooling systems can also be used to control the temperature and prevent the reactor from overheating.
The fission reaction is controlled through use of high neutron capture material as Boron, Gadolinium, Cadmium, ... etc.
The Atomic Energy Plant is named after physicist Enrico Fermi, who is known for his contributions to nuclear physics and for his work on the first controlled nuclear chain reaction.
A nuclear chain reaction nuclear fission
Nuclear energy is obtained by the fissioning of nuclei of uranium235, in a controlled chain reaction in a nuclear reactor, which produces heat that can be converted to electricity by normal power plant methods.
Some examples of nuclear energy:A fission reaction at a nuclear power plant provides enough energy to give electricity to large cities.The fusion reaction in the sun provides our planet with all of the energy it needs for living organisms to survive.An uncontrolled fission reaction provides the destructive force of a nuclear bomb.source: softschools.com
The Bataan nuclear power plant uses nuclear fission as the nuclear reaction to generate electricity. In nuclear fission, the nucleus of an atom is split into two smaller nuclei, releasing a large amount of energy, which is harnessed to produce electricity.