Thermodynamic stability nyob ntawm seb qhov tshuaj tiv thaiv yog tus kheej. Qhov no nyob ntawm qhov hloov pauv hauv lub zog dawb (ΔG)Cov tshuaj tiv thaiv thermodynamically ruaj khov yog ib qho uas tsis tshua muaj tshwm sim. Yog li ntawd, nws yog kev ywj pheej ntawm txoj kev ntawm reactants thiab cov khoom.
Koj ua li cas txiav txim siab qhov ntsuas kub zoo li cas?
Cov tshuab tshuaj yuav raug hloov pauv hauv theem ntawm cov teeb meem lossis cov tshuaj tiv thaiv kab mob. Lub xeev A tau hais tias yuav tsum muaj qhov ntsuas kub ntau dua li lub xeev B yog tias Gibbs dawb lub zog ntawm qhov hloov pauv ntawm A rau B yog qhov zoo.
Qhov twg thermodynamically ruaj khov dua?
Teb tiav: Graphiteyog thermodynamically qhov ruaj khov tshaj plaws ntawm carbon.
Koj ua li cas txiav txim siab qhov twg cov tshuaj tiv thaiv zoo tshaj qhov ntsuas kub zoo dua?
Yog tias qhov tshuaj tiv thaiv ΔH yog qhov tsis zoo, thiab ΔS yog qhov zoo, cov tshuaj tiv thaiv ib txwm nyiam qhov ntsuas kub. Yog tias cov tshuaj tiv thaiv ΔH yog qhov zoo, thiab ΔS yog qhov tsis zoo, cov tshuaj tiv thaiv ib txwm yog qhov tsis txaus siab.
Yuav ua li cas yog qhov zoo tshaj plaws thermodynamically nyiam?
Cov tshuaj tiv thaiv zoo Cov tshuaj tiv thaiv uas tsis xav tau lub zog ua haujlwm yog hu ua cov tshuaj tiv thaiv thermodynamically nyiam. Nyob rau hauv cov ntaub ntawv ntawm exothermic thiab endothermic cov tshuaj tiv thaiv, qhov qub yog qhov zoo dua li nws tso tawm lub zog.
