Ib qho tshuaj tiv thaiv exothermic tshwm sim thaum qhov kub ntawm qhov system nce vim qhov hloov pauv ntawm cov cua sov. Cov cua sov no tau tso tawm rau hauv ib puag ncig, ua rau muaj qhov tsis zoo tag nrho rau qhov kub ntawm cov tshuaj tiv thaiv (qrxn<0).
Yuav ua li cas cov tshuaj tiv thaiv exothermic tshwm sim?
Cov tshuaj tiv thaiv uas tso tawm lub zog hu ua exothermic. Hauv cov tshuaj tiv thaiv exothermic, ntau lub zog raug tso tawm thaum cov nyiaj tau los tsim hauv cov khoom dua li siv los rhuav cov ntawv cog lus hauv cov reactants. Exothermic cov tshuaj tiv thaiv yog nrog los ntawm qhov kub thiab txias ntawm cov tshuaj tiv thaiv sib tov.
Koj paub li cas cov tshuaj tiv thaiv exothermic tshwm sim?
Yog li yog tias qhov sib npaug ntawm cov enthalpies ntawm cov reactants ntau dua li cov khoom, cov tshuaj tiv thaiv yuav exothermic. Yog hais tias cov khoom sab muaj ib tug loj enthalpy, cov tshuaj tiv thaiv yog endothermic. Tej zaum koj yuav xav tias yog vim li cas cov tshuaj tiv thaiv endothermic, uas ua rau lub zog los yog enthalpy los ntawm ib puag ncig, txawm tshwm sim.
Vim li cas cov tshuaj tiv thaiv exothermic tso cua sov?
Cov tshuaj tiv thaiv kub kub yog cov tshuaj tiv thaiv lossis cov txheej txheem uas tso tawm lub zog, feem ntau nyob rau hauv daim ntawv ntawm tshav kub lossis lub teeb. Hauv cov tshuaj tiv thaiv exothermic, lub zog raug tso tawm vim tag nrho lub zog ntawm cov khoom tsawg dua li tag nrho lub zog ntawm cov reactants.
Yuav ua li cas hloov cov tshuaj tiv thaiv exothermic?
Rau cov tshuaj tiv thaiv exothermic, heatyog cov khoom lag luam. Yog li ntawd, nce qhov kub thiab txias yuav hloov lubequilibrium rau sab laug, thaum txo qhov kub yuav hloov qhov sib npaug mus rau sab xis.
