Puas yog cua sov tso tawm thaum daim ntawv cog lus tsim?
Puas yog cua sov tso tawm thaum daim ntawv cog lus tsim?

Video: Puas yog cua sov tso tawm thaum daim ntawv cog lus tsim?

Video: Puas yog cua sov tso tawm thaum daim ntawv cog lus tsim?
Video: Tswv Yexus lub neej thaum pib txug thaum xaus 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 siv lub zog los rhuav tshem cov tshuaj uas twb muaj lawm. daim ntawv cog lus thiab lub zog yog tso tawm thaum nov daim ntawv cog lus.

Ntawm no, yog cua sov tso tawm thaum hydrogen bonds raug tsim?

- hydrogen bonds , zoo li tag nrho daim ntawv cog lus , yuav tsum nqus kub kom tawg, thiab kub yog tso tawm thaum lawv daim ntawv ; - zoo heev ntawm kub lub zog (nce hauv qhov kub thiab txias) yog xav tau txhawm rau cuam tshuam rau hydrogen bonds kom cov dej molecules tuaj yeem txav tau sai.

Ib tug kuj yuav nug, yuav ua li cas tshwm sim thaum muaj tshuaj lom neeg daim ntawv cog lus? Tshuaj cov tshuaj tiv thaiv ua thiab rhuav tshem chemical bonds nruab nrab ntawm molecules, ua rau cov ntaub ntawv tshiab raws li cov khoom ntawm cov tshuaj tiv thaiv . tawg chemical bonds absorbs zog, thaum ua tshiab daim ntawv cog lus tso tawm lub zog, nrog rau tag nrho tshuaj tiv thaiv ua endothermic los yog exothermic.

Ua qhov no hauv kev txiav txim siab, thaum cov nyiaj tau los tsim lub zog?

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

Thaum daim ntawv cog lus tshiab tsim nyob rau hauv cov tshuaj tiv thaiv dab tsi tshwm sim?

Thaum tshuaj tiv thaiv , cov daim ntawv cog lus uas tuav cov molecules ua ke sib cais thiab tsim daim ntawv cog lus tshiab , reranging atoms rau hauv cov khoom sib txawv. Txhua daim ntawv cog lus yuav tsum muaj qhov sib txawv ntawm lub zog kom tawg lossis daim ntawv ; tsis muaj lub zog no, lub tshuaj tiv thaiv tsis tuaj yeem tshwm sim, thiab cov reactants tseem nyob zoo li lawv.

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