Puas tsim cov ntawv cog lus tso tawm lub zog?
Puas tsim cov ntawv cog lus tso tawm lub zog?

Video: Puas tsim cov ntawv cog lus tso tawm lub zog?

Video: Puas tsim cov ntawv cog lus tso tawm lub zog?
Video: Saib Mis paub Poj niam (hluas nkauj) tus yam ntxwv lub siab 2024, Kaum ib hlis
Anonim

Hauv txhua hom tshuaj tiv thaiv, daim ntawv cog lus yog tawg thiab reassembled rau daim ntawv cov khoom tshiab. Txawm li cas los xij, hauv exothermic, endothermic, thiab tag nrho cov tshuaj tiv thaiv, nws yuav siv sij hawm zog txhawm rau rhuav cov tshuaj uas twb muaj lawm daim ntawv cog lus thiab zog yog tso tawm thaum nov daim ntawv cog lus.

Tsis tas li ntawd, puas yog lub zog tso tawm thaum muaj daim ntawv cog lus?

Zog yog absorbed kom tawg daim ntawv cog lus . Bond -breaking yog ib qho txheej txheem endothermic. Zog yog tso tawm thaum tshiab daim ntawv cog lus . Seb cov tshuaj tiv thaiv yog endothermic los yog exothermic nyob ntawm qhov sib txawv ntawm cov zog yuav tsum tau tawg daim ntawv cog lus thiab cov zog tso tawm thaum tshiab daim ntawv cog lus.

Ib tug kuj yuav nug, vim li cas thiaj li tsim daim ntawv cog lus exothermic? Thaum twg daim ntawv cog lus yog tsim lub cev poob zog thiab li no tsub kom nws stability (uas yog qhov kawg motive). Txij li thaum lawv yog ib tug txo nyob rau hauv lub zog, lub zog poob yog tso tawm raws li tshav kub zog thiab yog li nws yog ib tug exothermic txheej txheem.

Ntawm no, Bonds puas khaws lub zog?

Qhov tshaj zog ntawm 794 kJ / mol raug tso tawm raws li cua sov, uas peb tuaj yeem siv los ua noj peb cov zaub mov, thiab lwm yam. Yog li, tshuaj daim ntawv cog lus ua tsis yog khw ” zog . Cov zog rau kev tawg daim ntawv cog lus los tsuas yog thaum muaj zog daim ntawv cog lus yog tsim los hloov. Tab sis nws yuav siv sij hawm zog txhawm rau txhawm rau pab pawg phosphate los ntawm ATP.

Yuav ua li cas tshwm sim thaum chemical bond tsim?

A chemical bond yog ib tug ntev attraction ntawm atoms, ions los yog molecules uas enables lub tsim ntawm tshuaj tshuaj sib xyaw. Cov daim ntawv cog lus Tej zaum yuav tshwm sim los ntawm electrostatic quab yuam ntawm attraction ntawm oppositely them ions raws li nyob rau hauv ionic daim ntawv cog lus los yog los ntawm kev sib koom ntawm electrons li hauv covalent bonds.

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