Thaum muaj cov tshuaj tiv thaiv endothermic, reactants nyob rau theem qis zog piv rau cov khoom-raws li qhia hauv daim duab qhia lub zog hauv qab no. Hauv lwm lo lus, cov khoom lag luam tsis ruaj khov dua li cov reactants. … Zuag qhia tag nrho Δ H ΔH ΔH rau cov tshuaj tiv thaiv yog qhov tsis zoo, piv txwv li, lub zog raug tso tawm rau hauv daim ntawv ntawm tshav kub.
Yuav ua li cas rau cov reactants thiab cov khoom nyob rau hauv cov tshuaj tiv thaiv endothermic?
Txhua yam tshuaj tiv thaiv muaj zog. Lub zog yog siv los rhuav tshem cov ntawv cog lus hauv cov reactants, thiab lub zog raug tso tawm thaum cov ntawv cog lus tshiab tsim hauv cov khoom. Cov tshuaj tiv thaiv kab mob endothermic nqus lub zog, thiab cov tshuaj tiv thaiv exothermic tso tawm lub zog.
Puas yog lub zog reactant hauv cov tshuaj tiv thaiv endothermic?
Cov tshuaj tiv thaiv hluav taws xob thiab cov tshuaj tiv thaiv kab mob endothermic tuaj yeem xav tias muaj lub zog ua ib yam khoom ntawm cov tshuaj tiv thaiv lossis cov tshuaj reactant. Cov tshuaj tiv thaiv exothermic muab tawm lub zog, yog li lub zog yog cov khoom. Cov tshuaj tiv thaiv kab mob endothermic xav tau lub zog, yog li zog yog ib qho reactant.
Dab tsi yog cov reactants nyob rau hauv cov tshuaj tiv thaiv exothermic?
Lo lus exothermic txhais tau tias "tso cua sov." Zog, feem ntau nyob rau hauv daim ntawv ntawm tshav kub, yog tso tawm raws li ib tug exothermic cov tshuaj tiv thaiv pib. Qhov no tau piav qhia hauv daim duab hauv qab no. Cov kab zauv dav dav rau cov tshuaj tiv thaiv exothermic yog: Reactants → Khoom + Zog.
Vim li cas cov reactants ruaj khov dua hauv cov tshuaj tiv thaiv endothermic?
Vim tias lub zog ntawm lub kaw lus txo qis thaum lub sij hawm exothermic cov tshuaj tiv thaiv, cov khoom ntawm lub cev yog qhov ruaj khov dua li cov reactants. … 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.
