Video: Puas yog Delta koj tib yam li Delta E?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Yog lawm, delta E thiab delta U siv interchangeably.
Ua kom pom qhov no, Delta E yog dab tsi hauv chemistry?
ΔE yog qhov hloov pauv hauv lub zog sab hauv ntawm lub cev. ΔE = q + w (1st law of thermodynamics). ΔE kuj yog sib npaug rau.
Tsis tas li ntawd, Delta koj txhais li cas? Ntawm no Δ Ua Delta U Δ U yog kev hloov hauv lub zog sab hauv U ntawm qhov system. Q Q. Q yog cov cua kub xa mus rau hauv lub kaw lus-uas yog, Q yog cov lej ntawm tag nrho cov cua sov hloov mus rau hauv thiab tawm ntawm qhov system. W. W. W. W. W. W. W. W. W.
Yog li ntawd, qhov txawv ntawm _firxam_#8710 yog dab tsi; H thiab _firxam_#8710; U?
Enthalpy suav nrog lub zog sab hauv. Internal zog ( U ) yog qhov pib zoo li: Lub zog muaj zog npaum li cas. Enthalpy ( H ) yog lub peev xwm thermodynamic ntawm lub kaw lus thiab yog cov lej ntawm lub zog sab hauv thiab cov khoom ntawm lub siab thiab ntim ntawm lub cev.
Yuav ua li cas koj xam Delta E?
Nyob rau hauv cov ntaub ntawv ntawm dL *, da *, db *, qhov siab dua tus nqi, qhov ntau dua qhov txawv ntawm qhov dimension. Delta E * (Tag nrho cov xim sib txawv) yog xam raws li delta L *, a *, b * xim txawv thiab sawv cev rau qhov kev ncua deb ntawm kab ntawm tus qauv thiab tus qauv.
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