Cov txheej txheem:
Video: Dab tsi yog cov khoom ntawm ib qho electrochemical cell?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
(a) Cheebtsam ntawm Electrochemical Cell
Electrode: Nws yog cov khoom siv hluav taws xob ua los ntawm cov hlau (qee zaum tsis yog hlau zoo li graphite). A cell muaj ob lub electrodes. Ib qho hu ua Anode thiab lwm qhov hu ua Cathode. Electrolyte: Nws yog tsim los ntawm kev daws teeb meem ntawm ions lossis molten ntsev uas tuaj yeem ua hluav taws xob.
Ntawm no, dab tsi 3 Cheebtsam ua los ntawm electrochemical cell?
- Anode.
- Binder.
- Catalyst.
- Cathode.
- Hluav taws xob.
- Electrolyte.
- Ib nrab ntawm tes.
- Ions.
Ib yam li ntawd, muaj pes tsawg hom electrochemical hlwb muaj? ob hom
Ib sab saum toj no, dab tsi yog cov khoom tseem ceeb ntawm lub xov tooj ntawm tes electrochemical?
Electrochemical cell muaj plaub yam tseem ceeb:
- Lub anode: lub compartment qhov twg oxidation tshwm sim.
- Lub cathode: lub compartment qhov twg yuav txo tau tshwm sim.
- Sab nraud txoj kev tso cai rau cov ntws ntawm electrons.
- Ntsev choj los yog ntxeem tau barrier: tso cai rau ions ntws rov qab thiab tawm kom cov nqi tsis tsim.
Dab tsi yog electrochemical cell thiab nws ua haujlwm li cas?
Electrochemical hlwb siv tshuaj lom neeg los tsim hluav taws xob los yog hluav taws xob los ua kom muaj zog tshuaj lom neeg. Muaj ob hom: electrochemical hlwb siv lub zog siv los tsim cov tshuaj tiv thaiv; galvanic hlwb siv cov tshuaj tiv thaiv, feem ntau yog cov tshuaj tiv thaiv redox, los tsim hluav taws xob.
Pom zoo:
Dab tsi yog qhov me me ntawm cov khoom uas khaws cov khoom ntawm lub caij?
Ib qho atom yog qhov tsawg tshaj plaws ntawm txhua lub caij uas tseem khaws cov yam ntxwv ntawm lub caij ntawd. Ib daim ntawm ib lub caij uas peb tuaj yeem pom lossis kov yog ua los ntawm ntau, ntau atoms thiab tag nrho cov atoms yog tib yam lawv txhua tus muaj tib tus naj npawb ntawm protons
Dab tsi yog Qhov Ib Feem Cuam Tshuam ntawm cov khoom hydrogen hauv cov methane ch4 yog dab tsi?
Cov feem pua ntawm cov ntsiab lus los ntawm Element Element Symbol Mass Percent Hydrogen H 25.132% Carbon C 74.868%
Thaum lub ntim ntawm ib qho piv txwv ntawm cov pa roj yog txo lub siab ntawm cov qauv ntawm cov pa roj?
Kev txo qis Cov pa roj sib xyaw txoj cai hais tias lub siab ntawm cov pa roj yog inversely cuam tshuam nrog lub ntim thiab ncaj qha ntsig txog qhov kub thiab txias. Yog tias qhov kub thiab txias yog nyob tas li, qhov sib npaug raug txo rau Boyle txoj cai. Yog li ntawd, yog tias koj txo qhov siab ntawm cov roj av tas li, nws qhov ntim yuav nce ntxiv
Dab tsi yog qhov flux los ntawm lub voos xwmfab ntawm sab yog tias tus nqi ntawm Q yog ntawm ib qho ntawm nws lub ces kaum?
Raws li peb paub tias, tag nrho cov flux los ntawm tus nqi q yog q / ε 0 (Gauss txoj cai). Yog hais tias tus nqi yog nyob rau ntawm lub ces kaum ntawm lub voos xwmfab, ib co ntawm cov flux nkag mus rau hauv lub voos xwmfab thiab tawm los ntawm ib co ntawm nws lub ntsej muag. Tab sis qee qhov flux tsis nkag mus rau hauv lub voos xwmfab. Qhov 1/8th no yuav muab faib ua 3 ntu dua
Dab tsi yog txhais los ntawm lub sij hawm dissociation thiab dab tsi yog ib qho piv txwv ntawm cov khoom uas dissociates?
Dissociation, nyob rau hauv chemistry, sib cais ntawm ib yam khoom mus rau hauv atoms los yog ions. Thermal dissociation tshwm sim ntawm qhov kub thiab txias. Piv txwv li, hydrogen molecules (H 2) dissociate rau hauv atoms (H) ntawm kub heev; ntawm 5,000 ° K txog 95% ntawm cov molecules hauv cov qauv ntawm hydrogen yog dissociated rau hauv atoms