Video: Daim duab TV yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov Tv diagram muaj peb theem ib cheeb tsam (kua, vapor, supercritical fluid), ob-theem (kua + vapor) cheeb tsam, thiab ob qho tseem ceeb nkhaus - cov kua saturated thiab saturated vapor curves. Tus naj npawb ntawm cheeb tsam thiab nkhaus yuav nce ntxiv thaum peb xav txog cov khoom khib nyiab.
Tsis tas li ntawd, daim duab qhia theem qhia li cas?
A Phaj daim duab nyob rau hauv lub cev chemistry, engineering, mineralogy, thiab cov ntaub ntawv kev tshawb fawb yog ib hom kev siv rau ua yeeb yam tej yam kev mob (siab, kub, ntim, thiab lwm yam) ntawm uas thermodynamically txawv theem (xws li khoom, kua los yog gaseous xeev) tshwm sim thiab coexist ntawm equilibrium.
Ib yam li ntawd, cov khoom ntshiab puas tuaj yeem evaporate? Feem ntau cov khoom ntshiab qhia tib tus cwj pwm. Ib qho kev zam yog dej. Dej nthuav dav thaum khov. Muaj ob txoj kev uas a tshuaj muaj peev xwm dhau los ntawm cov theem khoom mus rau theem vapor i) nws yaj ua ntej rau hauv cov kua thiab tom qab ntawd evaporates , ii) ib evaporates ncaj qha tsis melting (sublimation).
Tsis tas li ntawd, cov khoom ntawm cov khoom ntshiab yog dab tsi?
Cov tshuaj ntshiab raug txhais ua tshuaj uas yog tsim los ntawm tsuas yog ib hom atom lossis molecule. Lub purity ntawm a yam khoom yog qhov ntsuas ntawm qhov uas tau muab yam khoom yog dawb huv . Lub cev khoom ntawm a cov khoom ntshiab suav nrog cov ntsiab lus melting thiab boiling zoo.
Cov dej saturated yog dab tsi?
Saturated dej yog ib qhov uas cov dej tau attained qib siab tshaj ntawm saturation (muaj qee yam xwm txheej zoo li super saturated kuj). Piv txwv li, nyob rau hauv cov ntaub ntawv ntawm NaCl yaj nyob rau hauv dej , cov saturation qib yog 36g rau 100 ml ntawm dej nyob rau hauv chav tsev kub (28 ° C).
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