Yog ΔG=0, the system is at equilibrium. Yog hais tias ΔG>0, cov txheej txheem tsis tshwm sim raws li sau tseg tab sis tshwm sim spontaneously nyob rau hauv lub rov qab kev taw qhia.
Yuav ua li cas thaum Delta G yog xoom?
Thaum Δ G=0 \Delta \text G=0 ΔG=0delta, pib ntawv, G, ntawv kawg, sib npaug, 0, lub kaw lus nyob rau hauv qhov sib npaug thiab qhov ntau ntawm cov khoom thiab reactants yuav nyob tas mus li.
Vim li cas Gibbs dawb zog yog xoom?
Yog li, yog tias lub zog pub dawb yog qhov zoo hauv cov tshuaj tiv thaiv, ces qhov rov qab tshwm sim yuav tshwm sim. Tam sim no equilibrium tsuas yog ib qho taw qhia uas tsis muaj kev hloov pauv tshwm sim, uas yog, qhov sib npaug hauv qhov system tsis muaj qhov hloov pauv raws sijhawm. Yog li ntawd tus entropy(S) thiab enthalpy(H) kuj tsis hloov. Yog li, dG=0.
txhais li cas thaum ∆ G yog xoom?
Yog tias nws tshwm sim tias cov khoom thiab cov tshuaj reactants sib npaug ntawm qhov sib npaug, ces ∆G° yog xoom, TAB ∆G° tsis yogtsim nyogZERO ntawm equilibrium. … Yog hais tias yog li ntawd, ces cov tshuaj tiv thaiv yuav tsum tau los ntawm ntau reactants, txo tus nqi ntawm Q, thiab cia ∆G mus txog xoom, piv txwv li, cia equilibrium tsim.
Dab tsi yog Gibbs dawb zog?
Lub Gibbs dawb lub zog (, ntsuas hauv joules hauv SI) yog qhov siab tshaj plaws ntawm kev ua haujlwm tsis nthuav dav uas tuaj yeem muab rho tawm los ntawm lub kaw lus thermodynamically kaw (ib qho uas tuaj yeem pauv tau cua sov thiab ua haujlwm nrog nws ib puag ncig, tab sis tsis muaj teeb meem).
