Qhov txawv ntawm Electron Affinity thiab Electron Gain Enthalpy

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Qhov txawv ntawm Electron Affinity thiab Electron Gain Enthalpy
Qhov txawv ntawm Electron Affinity thiab Electron Gain Enthalpy

Video: Qhov txawv ntawm Electron Affinity thiab Electron Gain Enthalpy

Video: Qhov txawv ntawm Electron Affinity thiab Electron Gain Enthalpy
Video: Ua poj nrauj vim nyiam sib deev. 10/7/2017 2024, Lub Xya hli ntuj
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Qhov sib txawv tseem ceeb ntawm electron affinity thiab electron nce enthalpy yog tias electron affinity yog hais txog qhov nyiam ntawm ib qho atom cais kom tau txais ib qho hluav taws xob, qhov hluav taws xob nce enthalpy yog lub zog tso tawm thaum ib qho nruab nrab nruab nrab atom tau txais ib qho hluav taws xob ntxiv.

Electron affinity thiab electron nce enthalpy yog ob nqe lus hais txog vim tias electron nce enthalpy yog ib qho kev ntsuas hais txog electron affinity.

Electron Affinity yog dab tsi?

Electron affinity yog tus nqi ntawm lub zog tso tawm thaum lub atom nruab nrab lossis ib lub molecule (nyob rau theem gaseous) tau txais ib qho hluav taws xob los ntawm sab nraud. Cov txheej txheem ntawm kev txais electron no tuaj yeem ua rau tsim cov tshuaj lom neeg tsis zoo.

Tsis tas li ntawd, qhov sib ntxiv ntawm ib qho hluav taws xob mus rau qhov nruab nrab atom lossis lub molecule tso tawm lub zog. Peb tuaj yeem hu qhov no yog exothermic cov tshuaj tiv thaiv. Hom tshuaj tiv thaiv no ua rau muaj qhov tsis zoo ion. Txawm li cas los xij, yog tias lwm qhov hluav taws xob yuav ntxiv rau qhov tsis zoo ion, lub zog yuav tsum tau muab txhawm rau txhawm rau ua qhov kev tshwm sim ntawd. Qhov no yog vim hais tias cov khoom siv hluav taws xob nkag los ntawm lwm cov electrons. Qhov tshwm sim no hu ua endothermic tshuaj tiv thaiv.

Qhov sib txawv ntawm Electron Affinity thiab Electron Gain Enthalpy
Qhov sib txawv ntawm Electron Affinity thiab Electron Gain Enthalpy

thawj electron affinities yog qhov tsis zoo thiab qhov thib ob electron affinity qhov tseem ceeb ntawm tib hom yog qhov zoo.

Electron affinity qhia tau hais tias muaj kev hloov pauv hauv lub sijhawm. Qhov no yog vim hais tias cov khoom siv hluav taws xob tau ntxiv rau sab nrauv orbital ntawm lub atom. Cov ntsiab lus ntawm lub rooj sib tham tau teem caij raws li qhov nce qib ntawm lawv tus lej atomic. Thaum tus lej atomic nce, tus naj npawb ntawm cov hluav taws xob uas lawv muaj nyob rau hauv lawv cov orbitals sab nraud nce.

Feem ntau, electron affinity yuav tsum nce raws lub sij hawm ntawm sab laug mus rau sab xis vim hais tias cov xov tooj ntawm electrons nce raws lub sij hawm; yog li ntawd, nws yog ib qho nyuaj rau ntxiv ib tug tshiab electron. Thaum kev sim tshuaj ntsuam xyuas, cov txiaj ntsig ntawm electron affinity qhia ib tus qauv zig-zag es tsis yog ib qho qauv uas qhia tau tias nce zuj zus.

Electron Gain Enthalpy yog dab tsi?

Electron nce enthalpy yog qhov hloov pauv hauv enthalpy thaum lub atom nruab nrab lossis lub molecule tau txais hluav taws xob los ntawm sab nraud. Peb tuaj yeem hais tias nws yog tus nqi ntawm lub zog tso tawm thaum lub nruab nrab atom lossis molecule (hauv theem gaseous) tau txais ib qho hluav taws xob los ntawm sab nraud. Yog li ntawd, electron nce enthalpy yog lwm lo lus uas peb siv rau electron affinity. Chav tsev rau kev ntsuas ntawm electron nce enthalpy yog kJ / mol. Cov khoom siv hluav taws xob tshiab ntxiv ua rau tsim cov tshuaj lom neeg tsis zoo.

Txawm li cas los xij, muaj qhov sib txawv ntawm electron nce enthalpy thiab electron affinity. Electron nce enthalpy sawv cev rau lub zog tso tawm mus rau ib puag ncig thaum ib qho hluav taws xob tau txais, whereas electron affinity sawv cev rau lub zog nqus los ntawm ib puag ncig thaum ib qho hluav taws xob tau txais. Yog li, electron nce enthalpy yog tus nqi tsis zoo, thaum electron affinity yog tus nqi zoo. Yeej, ob nqe lus sawv cev tib yam txheej txheem tshuaj.

Cov khoom siv hluav taws xob nce enthalpy muab peb lub tswv yim hais txog yuav ua li cas lub zog hluav taws xob khi rau ib lub atom. Ntau lub zog tso tawm, ntau dua cov hluav taws xob nce enthalpy.

Tus nqi ntawm electron nce enthalpy nyob ntawm qhov teeb tsa hluav taws xob ntawm lub atom uas tau txais hluav taws xob. Qhov sib ntxiv ntawm ib qho hluav taws xob mus rau ib qho nruab nrab atom lossis ib lub molecule tso tawm lub zog. Qhov no yog hu ua exothermic cov tshuaj tiv thaiv. Cov tshuaj tiv thaiv no ua rau muaj qhov tsis zoo ion. Electron nce enthalpy yuav yog tus nqi tsis zoo. Tab sis yog tias lwm cov hluav taws xob yuav raug ntxiv rau qhov tsis zoo ion, lub zog yuav tsum tau muab txhawm rau txhawm rau ua qhov kev tshwm sim ntawd. Qhov no yog vim hais tias cov khoom siv hluav taws xob nkag los ntawm lwm cov electrons. Qhov tshwm sim no hu ua endothermic cov tshuaj tiv thaiv. Ntawm no, cov electron nce enthalpy yuav yog tus nqi zoo.

Qhov txawv ntawm Electron Affinity thiab Electron Gain Enthalpy yog dab tsi?

Electron affinity yog tus nqi ntawm lub zog tso tawm thaum lub atom nruab nrab lossis ib lub molecule (nyob rau theem gaseous) tau txais ib qho hluav taws xob los ntawm sab nraud. Electron nce enthalpy yog qhov hloov pauv hauv enthalpy thaum lub atom nruab nrab lossis ib lub molecule tau txais ib qho hluav taws xob los ntawm sab nraud. Qhov sib txawv tseem ceeb ntawm electron affinity thiab electron nce enthalpy yog tias electron affinity yog hais txog qhov nyiam ntawm ib qho atom cais kom tau txais ib qho hluav taws xob thaum hluav taws xob nce enthalpy yog lub zog uas tawm thaum ib qho nruab nrab nruab nrab atom tau txais ib qho hluav taws xob ntxiv.

Hauv qab no yog cov ntsiab lus ntawm qhov sib txawv ntawm electron affinity thiab electron nce enthalpy nyob rau hauv daim ntawv teev.

Qhov sib txawv ntawm Electron Affinity thiab Electron Gain Enthalpy hauv Daim Ntawv Tabular
Qhov sib txawv ntawm Electron Affinity thiab Electron Gain Enthalpy hauv Daim Ntawv Tabular

Summary – Electron Affinity vs Electron Gain Enthalpy

Electron affinity thiab electron nce enthalpy yog ob nqe lus hais txog vim tias electron nce enthalpy yog ib qho kev ntsuas txog electron affinity. Qhov sib txawv tseem ceeb ntawm electron affinity thiab electron nce enthalpy yog tias electron affinity yog hais txog qhov nyiam ntawm ib qho atom cais kom tau txais ib qho hluav taws xob, whereas electron nce enthalpy yog lub zog uas tso tawm thaum ib qho nruab nrab nruab nrab atom tau txais ib qho hluav taws xob ntxiv.

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