Puas yog cov hlwb electrochemical spontaneous?

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Puas yog cov hlwb electrochemical spontaneous?
Puas yog cov hlwb electrochemical spontaneous?

Video: Puas yog cov hlwb electrochemical spontaneous?

Video: Puas yog cov hlwb electrochemical spontaneous?
Video: Niam tais puas hlwb 5/3/2021 2024, Kaum ib hlis
Anonim

Ib qho hluav taws xob hluav taws xob uas cov chemistry yog qhov tshwm sim yog hu ua voltaic cell. Qhov no txhais tau hais tias qhov oxidation yuav tshwm sim spontaneously ntawm lub anode thiab txo nws tus kheej ntawm cathode. Peb yuav tsum nco ntsoov tias lub cim ntawm ib yam dab tsi raws li lub cell voltaic yog ib qho kev xaiv.

Koj paub li cas yog tias lub xov tooj ntawm tes electrochemical yog tus kheej?

Rau cov qauv hluav taws xob hluav taws xob 1: Cov tshuaj tiv thaiv redox yog tus kheej yog tus qauv electrode muaj peev xwm rau cov tshuaj tiv thaiv redox, E o (redoxrection), yog qhov zoo Yog E o(redoxrection) yog qhov zoo, cov tshuaj tiv thaiv yuav mus rau pem hauv ntej (spontaneous).(saib galvanic cells (voltaic cells)).

Yuav ua li cas ntawm electrochemical cell yog spontaneous?

A galvanic (voltaic) cell siv lub zog tso tawm thaum lub sijhawm cov tshuaj tiv thaiv redox (ΔG<0) los tsim hluav taws xob. Hom electrochemical cell no feem ntau hu ua voltaic cell tom qab nws inventor, Italian physicist Alessandro Volta (1745–1827).

Peb hom kab mob electrochemical yog dab tsi?

Cov ntsiab lus hauv cov teeb no (11)

  • • Electrochemical cell- muaj cov kab ke uas muaj cov tshuaj tiv thaiv redox tshwm sim. Muaj peb hom: …
  • Galvanic cells. …
  • Electrolytic cells. …
  • Cov Cuam Tshuam. …
  • Rechargeable cells. …
  • Nickel-cadmium roj teeb. …
  • Electrode Charge Designations. …
  • Kev Txom Nyem Muaj Peev Xwm.

Dab tsi yog qhov tshwm sim ntawm tus kheej hauv electrochemistry?

Ib qho tshuaj tiv thaiv redox yog hom tshuaj tiv thaiv uas feem ntau yog tso tawm lub zog qhov twg cov electrons raug xa los ntawm peb hais anode rau cathode hom tshuaj tiv thaiv no feem ntau pom nyob rau hauv electrochemical hlwb. Ntawm no, cov tshuaj tiv thaiv ua rau tsim hluav taws xob.

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