Kev txhais ntawm cov tshuaj lom neeg sib npaug
Kev tsim ntawm cov tshuaj sib npaug tshuaj yog qhov tshwm sim ntawm kev ua haujlwm thim rov qab. Cov tshuaj tiv thaiv thim rov qab hais txog tib qho ntawv
Qhov kev tawm tsam tuaj yeem nqa tawm ob qho tib si rau pem hauv ntej thiab thim rov qab. Cov kev siv tshuaj lom neeg feem ntau thim rov qab thiab tuaj yeem sib npaug rau ntau qib. Tshuaj sib luag yog hais txog lub xeev uas yav dhau los thiab rov qab cov tshuaj tiv thaiv ntawm cov tshuaj tiv thaiv yog sib npaug ntawm cov tshuaj tiv thaiv thim rov qab nrog qee yam kev mob macroscopic, thiab qhov kev kub siab ntawm txhua feem ntawm cov reactant thiab cov khoom lag luam tsis hloov. Nws tuaj yeem txiav txim los ntawm ΔrGm=ΣνΑμΑ=0, isA yog qhov tshuaj lom neeg lub zog ntawm cov tshuaj A hauv qhov tshuaj tiv thaiv. Raws li Gibbs kev kuaj xyuas lub zog dawb, thaum ΔrGm=0, cov tshuaj tiv thaiv tau mus txog qhov siab tshaj plaws thiab nyob rau hauv qhov sib npaug.