Cov txheej txheem:
- Qee qhov piv txwv ntawm cov txheej txheem exothermic yog:
- Piv txwv ntawm Endothermic thiab Exothermic txheej txheem
Video: Dab tsi yog qhov hloov pauv ntawm cov tshuaj exothermic?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ib exothermic tshuaj tiv thaiv yog a tshuaj tiv thaiv uas tso tawm lub zog los ntawm lub teeb lossis cua sov. Nws yog qhov opposite ntawm endothermic tshuaj tiv thaiv . Qhia hauv a tshuaj equation: reactants → khoom + zog.
Hauv qhov no, qee qhov piv txwv ntawm kev hloov pauv exothermic yog dab tsi?
Qee qhov piv txwv ntawm cov txheej txheem exothermic yog:
- Combustion ntawm fuels xws li ntoo, thee thiab roj av.
- Cov tshuaj tiv thaiv thermal.
- Cov tshuaj tiv thaiv alkali hlau thiab lwm yam hlau electropositive heev nrog dej.
- Condensation ntawm nag los ntawm dej vapor.
- Sib tov dej thiab muaj zog acids lossis muaj zog hauv paus.
- Sib tov acids thiab bases.
Ib sab saum toj no, qhov kev hloov pauv endothermic yog dab tsi? endothermic . Lub ntsiab txhais ntawm endothermic yog tshuaj lom neeg cov tshuaj tiv thaiv uas yog nrog los ntawm kev nqus cua sov, los yog ib yam kab mob uas tsim kom muaj cua sov los tswj nws qhov kub thiab txias. Ib qho tshuaj tiv thaiv uas ua haujlwm tsuas yog thaum tshav kub absorbed yog ib qho piv txwv ntawm cov tshuaj tiv thaiv uas yuav piav raws li endothermic.
Kuj Paub, qee qhov piv txwv ntawm exothermic thiab endothermic cov tshuaj tiv thaiv yog dab tsi?
Piv txwv ntawm Endothermic thiab Exothermic txheej txheem
- Dissolving ammonium chloride hauv dej.
- Cracking alkanes.
- Nucleosynthesis ntawm cov ntsiab lus hnyav dua nickel hauv cov hnub qub.
- Evaporating kua dej.
- Cov dej khov yaj.
Cov khoom siv dab tsi siv cov tshuaj tiv thaiv exothermic?
Kev siv txhua hnub exothermic tshuaj tiv thaiv suav nrog cov kaus poom ua kom sov tus kheej thiab cov tes ua kom sov. Thaum lub zog raug coj los ntawm ib puag ncig, qhov no yog hu ua endothermic tshuaj tiv thaiv thiab qhov kub ntawm qhov chaw ib puag ncig txo qis.
Pom zoo:
Dab tsi yog qhov txawv ntawm ib puag ncig kev hloov pauv thiab kev hloov pauv qub txeeg qub teg?
Qhov sib txawv ntawm cov yam ntxwv ntawm cov tib neeg ntawm tib hom yog hu ua variation. Qhov no yog inherited variation. Qee qhov kev hloov pauv yog qhov tshwm sim ntawm qhov sib txawv ntawm ib puag ncig, lossis ib tus neeg ua dab tsi. Qhov no yog hu ua environmental variation
Dab tsi yog qhov kev hloov pauv ntawm cov khoom uas txav ntawm qhov chaw mus rau qhov chaw ntawm - 12 m?
Kev piav qhia: Qhov kev txav ntawm ib qho khoom txav ntawm qhov chaw mus rau qhov chaw ntawm − 12 m yog 12 meters. Qhov kev ncua deb ntawm lub hauv paus chiv keeb mus rau qhov siab tshaj plaws txoj hauj lwm yog hu ua displacement ntawm ib yam khoom. Qhov siab tshaj plaws kev hloov pauv ntawm cov khoom nyob rau hauv ib nthwv dej yog hu ua crest thiab qhov tsawg kawg nkaus hloov pauv yog hu ua trough
Cov kev hloov ntawm lub cev txawv ntawm cov tshuaj hloov pauv li cas muab ib qho piv txwv ntawm txhua tus?
Kev hloov tshuaj lom neeg tshwm sim los ntawm cov tshuaj tiv thaiv tshuaj, thaum lub cev hloov pauv yog thaum cov teeb meem hloov pauv tab sis tsis yog tshuaj lom neeg. Piv txwv ntawm kev hloov tshuaj lom neeg yog hlawv, ua noj, xeb, thiab rotting. Piv txwv ntawm kev hloov lub cev yog boiling, melting, khov, thiab shredding
Dab tsi yog qhov txawv ntawm lub cev thiab tshuaj hloov pauv ntawm cov teeb meem?
Kev hloov tshuaj lom neeg tshwm sim los ntawm cov tshuaj tiv thaiv tshuaj, thaum lub cev hloov pauv yog thaum cov teeb meem hloov pauv tab sis tsis yog tshuaj lom neeg. Piv txwv ntawm kev hloov tshuaj lom neeg yog hlawv, ua noj, xeb, thiab rotting. Piv txwv ntawm kev hloov lub cev yog boiling, melting, khov, thiab shredding
Peb qhov laj thawj tseem ceeb ntawm kev hloov pauv hloov pauv yog dab tsi?
Allele frequencies nyob rau hauv ib tug pej xeem yuav hloov vim plaub lub hauv paus zog ntawm evolution: Natural Selection, Genetic Drift, Mutations thiab Gene Flow. Kev hloov pauv yog qhov kawg ntawm cov alleles tshiab hauv cov noob caj noob ces. Ob ntawm cov txheej txheem tseem ceeb tshaj plaws ntawm kev hloov pauv hloov pauv yog: Natural Selection thiab Genetic Drift