Video: Puas yog chav condensing endothermic lossis exothermic?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
C. Tib qhov kub yuav raug tso tawm thaum lub steam condenses rau cov dej ua kua, ntawm 100 deg. C. Yog li, nws yog ib qho exothermic txheej txheem, thiab tso tawm cov caloric npaum li cas ntawm Latent Kub ntawm Vaporization rau qhov loj ntawm chav uas condenses.
Tib neeg kuj nug, yog vim li cas ncu condensing exothermic?
Ib exothermic cov tshuaj tiv thaiv ua rau lub zog kub. Condensation yog tus txheej txheem uas dej vapor hloov mus ua kua dej. Qhov no feem ntau tshwm sim thaum dej vapor molecules tuaj rau hauv kev sib cuag nrog txias molecules. Qhov no ua rau cov dej vapor molecules kom poob ib co zog li cua sov.
Kuj Paub, yog hlawv cawv endothermic lossis exothermic? (b) Lub tshav kub yog absorbed los ntawm isopropyl cawv kom tau evaporated ntawm daim tawv nqaij, yog li ntawd, cov txheej txheem yog a endothermic txheej txheem. Rau qhov no endothermic txheej txheem muaj ib tug zoo kos npe rau. (c) Thaum tshav kub kub poob los ntawm chav kom tau condensed rau hauv dej, yog li ntawd, cov txheej txheem yog ib qho exothermic tshuaj tiv thaiv.
Kuj paub, yog condensation endothermic los yog exothermic?
Evaporation yog endothermic , txhais tau tias nws yuav siv cua sov tawm ntawm nws ib puag ncig. Condensation txawm li cas los xij, yog qhov opposite nrog nws ua exothermic , qhov twg nws tso cua sov rau hauv ib puag ncig.
Puas yog boiling exothermic?
Vim peb yuav tsum ntxiv cua sov, boiling dej yog txheej txheem uas chemists hu ua endothermic. Kom meej meej, yog tias qee cov txheej txheem xav tau cua sov, lwm tus yuav tsum muab cov cua sov thaum lawv ua. Cov no yog hu ua exothermic . Ib yam li ntawd thaum cov kua dej khov, cua sov tau muab tawm.
Pom zoo:
Puas yog qhov kub ntawm kev daws rau LiCl exothermic lossis endothermic?
Teb thiab piav qhia: Lub tshav kub ntawm kev daws rau LiCl yog exothermic. Thaum lithium thiab chloride ionize hauv dej, lawv yuav tsum xub sib cais los ntawm ib leeg
Puas yog cov tshuaj tiv thaiv tom ntej endothermic lossis exothermic?
Cov tshuaj tiv thaiv pem hauv ntej muaj ΔH>0. Qhov no txhais tau tias cov tshuaj tiv thaiv pem hauv ntej yog endothermic. Yog li ntawd, cov tshuaj tiv thaiv yuav tsum tau beexothermic
Puas yog cov tshuaj tiv thaiv combustion exothermic lossis endothermic?
Combustion yog ib qho oxidation cov tshuaj tiv thaiv uas ua rau kub, thiab nws yog li ntawd ib txwm exothermic. Tag nrho cov tshuaj tiv thaiv ua ntej tawg cov ntawv cog lus thiab tom qab ntawd ua cov tshiab los tsim cov ntaub ntawv tshiab. Kev rhuav tshem cov ntawv cog lus siv lub zog thaum ua cov ntawv cog lus tshiab tso tawm lub zog
Puas yog Melting endothermic lossis exothermic?
Melting yog cov tshuaj tiv thaiv endothermic uas tag nrho cov cua sov hauv cov khoom, tseem hu ua enthalpy, nce
Puas yog condensing steam exothermic lossis endothermic?
C. Cov cua sov tib yam yuav raug tso tawm thaum lub tshuab ua kom cov dej ua kua, ntawm 100 deg. C. Yog li, nws yog txheej txheem anexothermic, thiab tso tawm cov caloric npaum li cas ntawm Latent Heatof Vaporization rau qhov loj ntawm chav uas condenses