Yog tias qhov tshuaj tiv thaiv yog exothermic (H yog qhov tsis zoo) thiab qhov entropy S yog qhov zoo (ntau qhov teeb meem), qhov hloov pauv lub zog dawb yog ib txwm tsis zoo thiab cov tshuaj tiv thaiv ib txwm muaj. … Yog hais tias qhov enthalpy hloov H thiab qhov hloov pauv entropy S yog qhov zoo lossis ob qho tib si tsis zoo, qhov tshwm sim ntawm qhov tshwm sim nyob ntawm qhov kub.
Tus txheej txheem exothermic puas tuaj yeem tsis yog tus kheej?
Ib qho tshuaj tiv thaiv exothermic tuaj yeem tsis yog-spontaneous thaum kub siab thiab entropy tsis zoo, raws li qhia hauv ∆G=∆H-T∆S kab zauv.
Puas yog cov tshuaj tiv thaiv kab mob endothermic ib txwm muaj tshwm sim?
Nyob rau hauv cov tshuaj tiv thaiv endothermic, lub zog yog absorbed thaum lub sij hawm cov tshuaj tiv thaiv, thiab cov khoom yog li muaj ib tug loj npaum li cas ntawm lub zog tshaj cov reactants. … Yog li ntawd, cov tshuaj tiv thaiv yuav tsis tshwm sim yam tsis muaj kev cuam tshuam sab nraud xws li cov cua kub tsis tu ncua. Txawm li cas los xij, cov tshuaj tiv thaiv kab mob endothermic tshwm sim tshwm sim, lossis ib txwm muaj.
hom tshuaj tiv thaiv twg yog qhov tshwm sim?
Ib qho tshuaj tiv thaiv uas yog exothermic (ΔH tsis zoo) thiab ua rau muaj kev nce ntxiv hauv lub cev ntawm lub cev (ΔS zoo) yuav ib txwm ua raws li tus kheej.
Yuav ua li cas cov tshuaj tiv thaiv ib txwm muaj quizlet?
Exothermic reactions yog ib txwm ua. Cov tshuaj tiv thaiv kab mob endothermic yeej tsis tshwm sim. Cov tshuaj tiv thaiv kab mob endothermic yeej tsis tshwm sim. Ib qho tshuaj tiv thaiv uas ua rau muaj kev nce ntxiv hauv entropy ntawm lub cev yog ib txwm ua raws.
