chain reaction, self-sustaining reaction that, once started, continues without further outside influence. ... A line of dominoes falling after the first one has been pushed is an example of a mechanical chain reaction; a pile of wood burning after it has been kindled is an example of a chemical chain reaction.
What is the chain reaction?
A reaction that initiates its own repetition . In a fission chain reaction, a fissionablenucleus absorbs a neutron and fissions spontaneously, releasing additional neutrons. These, in turn, can be absorbed by other fissionable nuclei, releasing still more neutrons.
What is a chain reaction give an example?
chain reaction. In chemistry and physics, a self-sustaining series of reactions. In a chain reaction in a uranium-based nuclear reactor, for example, a single neutron causes the nucleus of a uranium atom to undergo fission . In the process, two or three more neutrons are released.
What is a chain reaction give 2 examples?
Chain Reactions Examples
The chemical reaction between hydrogen gas and oxygen gas to form water is another example of a chain reaction. In the reaction, one hydrogen atom is replaced by another as well as two OH radicals. The propagation of the reaction can lead to an explosion.
What is chain reaction answer?
chemistry. Share Give Feedback External Websites. Chain reaction, in chemistry and physics, process yielding products that initiate further processes of the same kind , a self-sustaining sequence.
What is a chain reaction simple definition?
A chain reaction refers to a process in which neutrons released in fission produce an additional fission in at least one further nucleus . This nucleus in turn produces neutrons, and the process repeats. The process may be controlled (nuclear power) or uncontrolled (nuclear weapons).
How do you use chain reaction in a sentence?
1. The powder immediately ignited and set off a chain reaction of explosions. 2. The Government fear the strike may produce a chain reaction in other industries.
What are the different types of chain reaction?
Chain reactions can be addressed into two categories: first, controlled (like a nuclear power plant) and uncontrolled (an atomic bomb) . Both are motivated by fission reactions, which are elaborated in this section.
What are the steps of chain reaction?
Chain reactions comprise initiation, propagation and termination steps . Initiation steps generate radicals from nonradicals, while termination steps generate nonradicals by removing radicals.
What is another word for chain reaction?
In this page you can discover 11 synonyms, antonyms, idiomatic expressions, and related words for chain-reaction, like: domino-effect , causal nexus, , chain of circumstances, chemical-reaction, concatenation of events, powder train, ripples in a pond, vicious-circle, fission and kinetic theory.
What is non chain reaction?
Although many radical reactions in carbohydrate chemistry are chain processes, nonchain reactions also play a significant role in the chemistry of these compounds. ... Bond homolysis is usually a photochemical reaction . Electron transfer typically involves transition-metal-generated radicals.
Did steps sing chain reaction?
| “Chain Reaction” | Producer(s) Graham Stack, Mark Taylor | Steps singles chronology |
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Who invented chain reaction?
Enrico Fermi , the Italian-born Nobel Prize-winning physicist, directs and controls the first nuclear chain reaction in his laboratory beneath the bleachers of Stagg Field at the University of Chicago, ushering in the nuclear age.
What is retardation step in case of chain reaction?
Retardation steps (optional) – steps in which a chain carrier attack a product molecule formed earlier in the reaction, thus reducing the net rate of product formation . ... Possible ways for inhibition include reaction of the chain carriers with the walls of the reaction vessel or foreign species.
What is an example of an uncontrolled chain reaction?
A neutron hits the nucleus of the radioactive element (e.g. Uranium) The Tsar Bomba (a soviet device) was the largest nuclear weapon ever detonated . This is an example of what the result of an uncontrolled Nuclear Chain Reaction can cause.
What is the application of chain reaction?
We present a survey of the following applications of PCR: 1) The amplification of gene fragments as fast alternative of cloning . 2) The modification of DNA fragments. 3) The sensitive detection of pathogenic microorganisms, if desired followed by an accurate genotyping. 4) DNA analysis of arachaeological specimens.
