Puas yog combustion ntawm octane endothermic lossis exothermic?
Puas yog combustion ntawm octane endothermic lossis exothermic?

Video: Puas yog combustion ntawm octane endothermic lossis exothermic?

Video: Puas yog combustion ntawm octane endothermic lossis exothermic?
Video: Hayengchi Hawj - Ua Tus Ntawm Koj Ib Sab 2024, Kaum ib hlis
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Cov combustion ntawm methane los yog octane ua yog exothermic ; nws tso zis zog.

Ib yam li ntawd, koj tuaj yeem nug, puas yog combustion yog endothermic lossis exothermic cov tshuaj tiv thaiv?

combustion yog oxidation tshuaj tiv thaiv uas ua kom sov, thiab nws yog li ntawd ib txwm exothermic . Yog tias lub zog tso tawm los ntawm cov ntawv cog lus tshiab ntau dua li lub zog xav tau los rhuav tshem cov ntawv cog lus qub, lub tshuaj tiv thaiv yog exothermic.

Ib sab saum toj no, puas yog qhov sib xyaw ntawm butane exothermic lossis endothermic? Hauv hlawv ntawm butane , cua sov yog muab tawm. Li no, cov tshuaj tiv thaiv yog Exothermic thiab kos npe ntawm ΔHis-ve Δ H i s − v e. Hauv hlawv ntawm butane , cua sov yog muab tawm. Li no, cov tshuaj tiv thaiv yog Exothermic thiab kos npe ntawm ΔHis-ve Δ H i s − v e.

Ntawm no, puas yog combustion ib txwm exothermic?

combustion cov tshuaj tiv thaiv ib txwm koom nrog molecular oxygen O2. Txhua lub sij hawm txhua yam kub hnyiab (hauv qhov kev xav ib txwm muaj), nws yog combustion tshuaj tiv thaiv. combustion cov tshuaj tiv thaiv yuav luag ib txwm exothermic (piv txwv li, lawv muab cua sov). Thaum cov organic molecules combust cov tshuaj tiv thaiv cov khoom yog carbon dioxide thiab dej (nrog rau kub).

Puas yog cov tshuaj tiv thaiv combustion hauv lub cav tsheb endothermic lossis exothermic?

Hos ntau cov tshuaj tiv thaiv yog endothermic cov tshuaj cov tshuaj tiv thaiv uas sov peb, np. qhov kub ( combustion ) ntawm fuels thiab cov combustion petrol ib tsheb cav yog ob qho tseem ceeb exothermic tshuaj tiv thaiv.

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