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Describes happens during a chain reaction in fission and fusion?
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Why fusion reaction are more energetic than fission reactions?
Nuclear fission does not produce more energy than nuclear fusion. In nuclear fusion (6.4 MeV) per nucleon is given out which is much greater than the energy given out per nucleon (1 MeV) during a nuclear fission reaction.
As the number of neutrons emitted during a fission reaction increases the intensity of the fission process does what?
The number of neutrons emitted during a fission reaction is characteristic of the isotope doing the fissioning, usually U-235 or Pu-239. It does not vary with any ambient condition like temperature or pressure, as it is determined by the properties of the nucleus. What you are thinking of, I believe, is the number of fissions occurring per second in a reactor. Each fission releases a fixed amount of energy, so the total number of fissions per second represents the power level of the reactor.
What is a characteristic that best describes what happens during a physical change?
There are no chemical changes.
What happens to the potential energy of the molecules in a?
The potential energy of the molecules change during a reaction.
What type of particle is captured by a nucleus during a fission reaction?
The nucleus splits to form two or more smaller nuclei.
Which describes what happens during a chain reaction?
Neutrons released during a fission reaction trigger other fission reactions.
What is needed to produce different isotopes during fission?
The fission reaction must be possible.
What describes what happens during a chemical reaction between two compounds?
I don"t know. your on your own!
Which statements best describes what happens during a chemical reaction?
Chemical bonds are broken and new ones are formed
What happens during fission when a neutron combines with a uranium-235 atom?
During fission of uranium-235 with thermal neutrons the atom is splitted and many fission products are obtained.
What is the only thing that can get changed in a balancing equation?
It is the mass defect during a fission reaction. Enrgy evolved during a radioactive fission can be calculated using the formula gived by Einstein e =mc
How many neutrons are produced during a typical uranium fission reaction and what is the role of these neutrons in a nuclear chain reaction?
A typical uranium fission event produces 2 to 3 neutrons. These neutrons are moderated (slowed down) and go on to initiate the fission of more uranium. On average, in a controlled reaction that is maintained at normal criticality (KEffective = 1), each fission creates exactly one neutron that is used to produce another fission.
What are used to show what happens during a chemical reaction?
Scientific experiments are used to show what happens during a chemical reaction.
Why you use moderators in a nuclear reaction chamber during a fission chain reaction?
A moderator in a fission chain reaction is a system (usually water) that slows neutrons down (decreases their energy) to the point where they can interact with fissile material, causing the fission reaction to be self sustaining. This is necessary because, without the moderator, the neutrons emitted from fission have too much energy to cause subsequent fission. The design of the moderator is such that it provides automatic control of the reaction. As it heats up, the moderation effect decreases, causing the reaction to decrease. Conversely, as it cools down, the moderation effect increases, causing the reaction to increase. In the event that the moderator fails, such as when a depressurization event causes the water to flash to steam, the loss of moderation causes the fission reaction to stop.
What symbols are used to show what happens during a reaction?
It helps show you what goes on during a chemical reaction
What happens during oxidation reactions?
hat happens in an oxidation reaction? to9u
What happens between atoms during a chemical reaction?
This happens when atoms are rearanged
