Video: Thaum ib yam dab tsi txias yog endothermic los yog exothermic?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ib endothermic cov tshuaj tiv thaiv yog qhov opposite. Qhov no yog thaum cov tshuaj tiv thaiv pib txias dua thiab xaus li kub, noj nyob rau hauv lub zog ntawm pib mus rau tag. Hauv ib endothermic cov tshuaj tiv thaiv, lub cev tau txais cua sov thaum ib puag ncig txias. Hauv ib exothermic tshuaj tiv thaiv, lub kaw lus poob cua sov thaum ib puag ncig cua sov.
Kuj paub yog, koj paub li cas yog nws exothermic lossis endothermic?
Teb ceev. Hauv kev sib npaug tshuaj, qhov chaw ntawm lo lus "kub" tuaj yeem siv los txiav txim siab sai sai seb qhov tshuaj tiv thaiv puas yog endothermic los yog exothermic . Yog tias cua sov tso tawm raws li cov khoom ntawm cov tshuaj tiv thaiv, cov tshuaj tiv thaiv yog exothermic . Yog hais tias cua sov tau teev nyob rau sab ntawm cov reactants, cov tshuaj tiv thaiv yog endothermic.
Tsis tas li ntawd, puas yog endothermic txias rau qhov kov? Endothermic cov tshuaj tiv thaiv yog cov uas yuav tsum nqus lub zog ntawm lawv ib puag ncig. Qhov no tuaj yeem suav nrog kev nqus cua sov los ntawm lub thawv uas lawv nyob hauv, lossis los ntawm koj lub ntsis ntiv tes. Qhov tshwm sim yog tias ob lub thawv thiab koj cov ntiv tes yuav hnov txias.
Tsis tas li ntawd, puas yog qhov kub nce endothermic lossis exothermic?
Hauv thawj cov tshuaj tiv thaiv, lub zog muab tawm yog qhov tsis zoo thiab yog li cov tshuaj tiv thaiv yog exothermic . Txawm li cas los xij, ib nce hauv kub tso cai rau lub cev kom nqus tau lub zog thiab yog li nyiam ib qho endothermic tshuaj tiv thaiv; lub equilibrium yuav hloov mus rau sab laug.
Vim li cas lub pob txias yog qhov tshuaj tiv thaiv endothermic?
Thaum lub hnab ntim dej tawg los ntawm kev nyem lub pob, nws dissolves cov khoom hauv ib qho endothermic tshuaj tiv thaiv . Qhov no tshuaj tiv thaiv absorbs cua sov los ntawm ib puag ncig, sai txo cov pob cov kub.
Pom zoo:
Yuav ua li cas koj twv seb qhov kev tshwm sim yog endothermic los yog exothermic?
Yog hais tias lub zog theem ntawm cov reactants siab tshaj lub zog theem ntawm cov khoom, cov tshuaj tiv thaiv yog exothermic (lub zog tau raug tso tawm thaum lub sij hawm cov tshuaj tiv thaiv). Yog hais tias lub zog theem ntawm cov khoom yog siab tshaj lub zog theem ntawm cov reactants nws yog ib tug endothermic cov tshuaj tiv thaiv
Puas yog boiling kua endothermic los yog exothermic?
Teb thiab piav qhia: Boiling yog ib qho endothermic cov tshuaj tiv thaiv los yog txheej txheem thaum tshav kub tau muab rau thiab absorbed los ntawm cov kua system boiled
Cov yam ntxwv ntawm qhov kub thiab txias yog dab tsi?
Qhov ntsuas kub yog qhov ntsuas los ntawm tus ntsuas kub. Kub muaj feem xyuam rau qhov nruab nrab kinetic zog ntawm atoms thiab molecules nyob rau hauv ib tug system. Tsis muaj xoom yog qhov kub uas tsis muaj molecular txav. Muaj peb qhov ntsuas kub tseem ceeb: Celsius, Fahrenheit, thiab Kelvin
Yuav ua li cas koj thiaj paub tias ib yam dab tsi yog ib yam khoom dawb huv los yog sib tov?
1. Cov tshuaj dawb huv tsis tuaj yeem muab cais ua lwm yam teeb meem, thaum sib xyaw yog sib xyaw ntawm ob lossis ntau dua cov khoom ntshiab. 2. Cov khoom ntshiab muaj lub cev tsis tu ncua thiab tshuaj lom neeg, thaum cov khoom sib xyaw muaj qhov sib txawv ntawm lub cev thiab tshuaj lom neeg (piv txwv li, qhov kub thiab txias)
Dab tsi ua rau cov txheej txheem dissolving exothermic lossis endothermic?
Cov txheej txheem ntawm dissolving yuav ua tau endothermic (kub mus down) los yog exothermic (kub mus txog). Yog tias nws siv lub zog ntau dua los cais cov khoom ntawm cov kuab tshuaj dua li tso tawm thaum cov dej molecules khi rau cov khoom, ces qhov kub thiab txias (endothermic)