0
Critical mass is the of material required to produce a chain reaction?
Wiki User
∙ 15y ago
minimum amount
Wiki User
∙ 15y ago
Zodiark
Anonymous
yeet
Wiki User
∙ 14y agoWhen the mass of the fissionable material is small, the chances of fission neutrons to cause further fission are small because they may escape without causing any fission. However , as the mass of fissionable material is increased, there are more atoms in the way of a fission neutron and hence the probability of further fission is increased. It follows that in order to cause explosive chain reaction , the mass of fissionable material must be equal to or more than the critical mass. Thus , this is the importance of critical mass in a chain reaction.
Wiki User
∙ 11y agoA chain reaction is any reaction that is self-sustaining, i.e. the reaction of, for example, two particle in turn causes the reaction of other particles and so on. A chain reaction also grows exponentially, so, in a nuclear fission reaction, say, a neutron colliding with a uranium nucleus causes the uranium nucleus to split (fission), releasing two more neutrons, that will collide with two other nuclei, releasing four new neutrons etc. Critical mass is the mass of a radioactive substance that will cause that substance to spontaneously fission, and cause a chain reaction. In a nuclear bomb of the 'gun' type, a pellet of uranium is fired into the main mass of uranium. This takes the mass of the uranium beyond critical mass, and thus causes a nuclear explosion.
Critical mass is the minimum amount of fissile material needed to sustain a chain reaction in a nuclear reactor or bomb. If the mass is below this threshold, the reaction will not be self-sustaining.
Wiki User
∙ 14y agoThe smallest mass of radioactive material needed to sustain a chain reaction is known as the critical mass.
Wiki User
∙ 7y agoCritical mass is the minimum amount of nuclear material needed to cause a chain reaction to continue without stopping.
Wiki User
∙ 12y agoCritical mass is the smallest ammount of fissile material for a nuclear chain reaction to take place. Critical mass is useful in nuclear reactors and nuclear weaponry.
Add your answer:
Earn +20 pts
What is the amount of fissionable material that must be present in order for a nuclear reaction to take place called?
The critical mass. With an amount of U-235 or Pu-239, the smallest critical mass will be a sphere. For a nuclear reactor, it will be the minimum number of fuel assemblies loaded to produce a chain reaction.
What particle is needed to begin a nuclear chain reaction?
A neutron is needed to initiate a nuclear chain reaction. When a neutron collides with a nucleus, it can cause the nucleus to split, releasing more neutrons that can then go on to collide with other nuclei, continuing the chain reaction.
What happens if a nuclear chain reaction is not controlled?
If a nuclear chain reaction is not controlled, it can lead to a runaway reaction with an increase in heat and radiation release beyond safe levels. This can result in a nuclear meltdown, leading to damage to the reactor core and potential release of harmful radioactive materials into the environment.
What material has no electrical resistance?
Superconductors have no electrical resistance when cooled below a certain temperature, called the critical temperature. At this temperature, electrons can move through the material without any hindrance, allowing for the flow of electricity without any loss of energy.
For a chain reaction to occur each vision must produce at least more fission reaction Apex?
In a chain reaction, each fission reaction must produce at least one additional fission reaction to sustain the reaction. This is necessary to achieve a self-sustaining nuclear reaction where each fission event leads to more fission events, releasing energy in the process. Without this multiplication of fission reactions, the chain reaction would not be able to continue and sustain itself.
What is the amount of fissionable material that must be present in order for a nuclear reaction to take place called?
The critical mass. With an amount of U-235 or Pu-239, the smallest critical mass will be a sphere. For a nuclear reactor, it will be the minimum number of fuel assemblies loaded to produce a chain reaction.
The smallest amount of a fissionable material that will give a self-sustaining chain reactions is called the?
The smallest amount of a fissionable material that will produce a self-sustaining chain reaction is called the critical mass. This mass of affected by geometry and other factors such as temperature, pressure, and moderator.
What is the minimum amount of unstable atoms needed to produce an uncontrolled chain reaction is called?
Critical mass is the minimum amount of unstable atoms needed to sustain a chain reaction in a nuclear reaction.
What is required to produce the chemical reaction of hydrogen and oxygen?
Lol trying to blow up the ocean
Whether raw material required to produce the goods consumed by people is sufficient?
chat with me Spell check your answer
What does reactants mean in science?
Reactants are the substances that participate in a chemical reaction and are consumed to produce products. They are the starting materials that undergo chemical changes during the reaction.
What is direct metrial and direct labor?
Direct material is that raw material which is required to produce the goods while direct labor is that cost without which no goods can be manufactured.
Are direct materials fixed costs?
Direct material is variable cost because to produce any unit of product direct material required which changes with change in production level.
How do you explain reactant and product?
Reactants are substances that are consumed in a chemical reaction to produce new substances called products. Reactants are present at the beginning of a reaction, while products are formed as a result of the reaction. The reactants undergo chemical changes to form the products during the reaction process.
Is an exothermic reaction will produce heat and will be reabsorbed to increase the rate of reaction?
Have you heard of Haber-Bosch process of production of ammonia. This is an example of the question you asked. If we apply the required heat in the beginning of the reaction we do not need to apply it again as its exothermic reversible reaction and will use the heat to continue the reaction. But the rate of reaction is not increased.
Is an ability to burn physical or chemical?
Burning is a chemical process that involves the rapid reaction of a material with oxygen to produce heat and light. It is not a physical property, but rather a chemical reaction.
What reaction takes place to produce quicklime?
Thermal Decomposition is the name of the reaction to produce quicklime from limestone.
