Cov txheej txheem:
- Delta S yog dab tsi rau qhov kev sib cais?
- Yuav ua li cas yog qhov txiaj ntsig ntawm ∆ U thiab ∆ s rau qhov kev sib cais?
- Tus nqi ntawm Delta S yog dab tsi rau qhov kev sib cais?
- Lub cev qhov twg yog xoom rau qhov kev sib cais?
Video: Rau qhov kev sib cais ∆u=0 yuav ua li cas ∆s?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
Vim ΔU=0, ΔS yuav zoo thiab cov tshuaj tiv thaiv yuav tshwm sim.
Delta S yog dab tsi rau qhov kev sib cais?
Txij thaum lub kaw lus cais tawm, tsis muaj kev hloov pauv tshwm sim hauv ib puag ncig. Yog li, ΔˆS=0; thiab txij li ΔS + ΔˆS>0, peb muaj ΔS>0.
Yuav ua li cas yog qhov txiaj ntsig ntawm ∆ U thiab ∆ s rau qhov kev sib cais?
Thermodynamics. Rau qhov kev sib cais, ∆U=0, ∆S yuav ua li cas? … Yog li ntawd, qhov chaw muaj ntau dua rau txhua qhov roj sib txawv xws li kev ua haujlwm tsis zoo. Qhov no qhia tau tias ∆S > 0 i.e. ∆S yog qhov zoo.
Tus nqi ntawm Delta S yog dab tsi rau qhov kev sib cais?
Teb tiav: Tus nqi ntawm \[Delta S] nyob rau hauv ib qho kev sib cais yuav yog positiveLub cim \[Delta U] sawv cev rau kev hloov pauv hauv lub zog sab hauv ntawm lub cev, thiab lub cim \[Delta S] sawv cev rau kev hloov pauv hauv entropy ntawm lub system. Entropy sawv cev rau qhov randomness ntawm ib qho system.
Lub cev qhov twg yog xoom rau qhov kev sib cais?
Kev piav qhia: Rau ib qho kev sib cais uas tsis muaj kev sib pauv ntawm lub zog nrog ib puag ncig Q=0 thiab kuj dS>=dQ / T. 2. Raws li lub theorem entropy, entropyntawm ib qho Cov txheej txheem cais tsis tuaj yeem txo qis thiab yuav nyob tas li tsuas yog thaum cov txheej txheem thim rov qab.
Pom zoo:
Kev sib cais sib cais tseem ceeb rau peb li cas?
Ib qho sib xyaw ua ke yog tsim los ntawm cov tshuaj ntshiab ntshiab Hydrocarbon, ib pawg ntawm cov tshuaj muaj tsuas yog hydrogen thiab carbon. https://en.wikipedia.org › wiki HC - Wikipedia tsuas. Tab sis lawv tau sib xyaw ua ke hauv ib qho kev sib tov.
Vim li cas kev sib cais sib cais tseem ceeb?
Ib qho sib xyaw ua ke yog tsim los ntawm cov tshuaj ntshiab ntshiab Hydrocarbon, ib pawg ntawm cov tshuaj muaj tsuas yog hydrogen thiab carbon. https://en.wikipedia.org › wiki HC - Wikipedia tsuas. Tab sis lawv tau sib xyaw ua ke hauv ib qho kev sib tov.
Rau cov roj zoo tagnrho uas qhov sib txawv yog qhov sib txawv ntawm qhov sib txawv?
Boyle txoj cai hais tias siab (P) thiab ntim (V) yog qhov sib npaug. Charles txoj cai hais tias ntim (V) thiab qhov kub thiab txias (T) ncaj qha proportional . Txoj cai roj twg yog qhov sib npaug sib npaug? Rau qhov loj ntawm cov roj zoo tagnrho khaws cia ntawm qhov kub thiab txias, siab thiab ntim yog qhov sib npaug.
Vim li cas thiaj yuav tsum muaj kev sib cais ntawm cov khoom sib txawv?
Lub hom phiaj ntawm kev sib cais ntawm cov khoom thauj yog kom tiv thaiv ib qho: Cov khoom sib txawv LOSSIS. Cov pob khoom sib txawv ntawm tib lub tsheb thauj khoom… los ntawm kev nqa dhau (tsis tau tso rau hauv lub nkoj tuav) . Lub ntsiab lus ntawm kev cais cov khoom thauj yog dab tsi?
Nyob rau hauv ib qho kev tsis sib haum xeeb pn kev sib tshuam cov kev sib tshuam tam sim no ntawm qhov sib npaug yog?
Nyob rau hauv qhov tsis ncaj ncees PN-kho qhov kev sib tshuam tam sim no ntawm qhov sib npaug yog zero, vim tias sib npaug tab sis cov neeg nqa khoom hla hla kev sib tshuam . Thaum pn kev sib tshuam tsis ncaj ncees qhov kev sib tshuam tam sim no ntawm qhov sib npaug yog?
