Cov txheej txheem:

Dab tsi yog cov tshuaj tiv thaiv kab mob muab piv txwv?
Dab tsi yog cov tshuaj tiv thaiv kab mob muab piv txwv?

Video: Dab tsi yog cov tshuaj tiv thaiv kab mob muab piv txwv?

Video: Dab tsi yog cov tshuaj tiv thaiv kab mob muab piv txwv?
Video: Tshuaj theem vim li cas thiaj tau nqi ?/ Siv kho mob dab tsi?/paris polyphylla use for? 2024, Kaum ib hlis
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Chain Reactions Piv txwv

Cov tshuaj tshuaj tiv thaiv nruab nrab ntawm cov pa roj hydrogen thiab cov pa oxygen los ua dej yog lwm qhov piv txwv ntawm a chainreaction . Hauv tshuaj tiv thaiv , ib hydrogen atom yog hloov los ntawm lwm tus nrog rau ob OH radicals. Propagation ntawm cov tshuaj tiv thaiv tuaj yeem ua rau muaj kev tawg.

Tsis tas li ntawd, cov tshuaj tiv thaiv kab mob yog dab tsi?

chain reaction . Nyob rau hauv chemistry thiab physics, aself-sustaining series ntawm cov tshuaj tiv thaiv . Hauv ib chainreaction nyob rau hauv uranium-based nuclear reactor, piv txwv li, ib leeg neutron ua rau lub nucleus ntawm uranium atom toundergo fission. Nyob rau hauv tus txheej txheem, ob los yog peb ntxiv neutrons raug tso tawm.

Tsis tas li ntawd, kev tswj cov saw hlau li cas? Hauv kev ua haujlwm ntawm a nuclear reactor, fuelassemblies muab tso rau hauv qhov chaw thiab tom qab ntawd cov tswj rods maj mam nqa mus txog rau thaum a chain reaction tuaj yeem txhawb nqa. Raws li tshuaj tiv thaiv nce, tus naj npawb ntawm uranium-235 nucleidecreases thiab fission by-products uas nqus neutrons buildup.

Tsis tas li ntawd, dab tsi yog cov lus nug cov lus nug cov lus nug?

Nuclear Chain Reactions . -Nws yog thaum nqus cov neutron ua rau cov nucleus tawg. ~ ntau zog tso tawm. ~ tso tawm neutrons tuaj yeem nqus los ntawm lwm cov nuclei.

Yuav ua li cas koj nres ib tug chain reaction?

Tib txoj kev los tswj lossis nres ib tug nuclear chainreaction yog to nres cov neutrons los ntawm splitting moreatoms. Tswj cov pas nrig ua los ntawm cov khoom siv neutron-absorbing xws li asboron txo tus naj npawb ntawm cov neutrons dawb thiab coj lawv tawm ntawm tshuaj tiv thaiv.

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