Qhov sib txawv tseem ceeb ntawm homogeneous thiab heterogeneous equilibrium yog tias nyob rau hauv homogeneous equilibrium, cov reactants thiab cov khoom nyob rau hauv tib theem ntawm teeb meem whereas, nyob rau hauv heterogeneous equilibrium, cov reactants thiab cov khoom nyob rau hauv txawv theem.
Equilibrium yog ib lub xeev uas cov concentrations ntawm reactants thiab cov khoom nyob twj ywm. Muaj ob hom equilibria li homogeneous equilibrium thiab heterogeneous equilibrium. Ob hom no txawv ntawm ib leeg raws li theem ntawm cov teeb meem ntawm cov reactants thiab cov khoom nyob rau hauv qhov sib npaug.
Homogeneous Equilibrium yog dab tsi?
Homogeneous equilibrium yog lub xeev uas cov reactants thiab cov khoom nyob rau hauv tib theem ntawm teeb meem. Feem ntau, cov reactants thiab cov khoom yog nyob rau hauv ib qho kev daws teeb meem. Peb hu hom tshuaj tiv thaiv no ua ib homogeneous sib tov. Cov hom tshuaj uas muaj nyob rau hauv qhov sib tov no tuaj yeem yog molecules, ions, lossis kev sib xyaw ntawm cov molecules thiab ions. Tsis tas li ntawd, cov lus qhia rau qhov sib npaug tas li ntawm hom tshuaj tiv thaiv no suav nrog cov concentration ntawm tag nrho cov reactants thiab cov khoom. Piv txwv li, kev sib xyaw cov roj sulfur dioxide thiab cov pa oxygen muab cov roj sulfur trioxide, tag nrho cov reactants thiab cov khoom yog nyob rau hauv cov roj theem. Tom qab ntawd cov tshuaj tiv thaiv thiab qhov sib npaug tsis tu ncua (K) yog raws li hauv qab no:
2SO2(g) + O2(g) ⇌ 2SO3(g)
K=[SO3(g)2/[SO2(g) 2[O2(g)]
Heterogeneous Equilibrium yog dab tsi?
Heterogeneous equilibrium yog lub xeev uas cov reactants thiab cov khoom nyob rau hauv ntau theem. Nyob ntawd cov theem tuaj yeem yog ib qho kev sib xyaw ntawm cov khoom, kua, thiab roj theem. Txawm li cas los xij, tsis zoo li hauv homogeneous equilibria, thaum sau cov equilibrium tas mus li rau heterogeneous equilibrium, peb yuav tsum tsis suav cov concentrations ntawm cov khib nyiab thiab cov kua ntshiab. Piv txwv li, sib xyaw cov pa roj carbon monoxide hauv cov khoom siv nrog cov pa oxygen muab cov pa roj carbon monoxide. Tom qab ntawd cov tshuaj tiv thaiv thiab qhov sib npaug tsis tu ncua (K) yog raws li hauv qab no:
O2(g) + 2C(s) ⇌ 2CO(g)
K=[CO(g)2/[O2(g)
Qhov txawv ntawm Homogeneous thiab Heterogeneous Equilibrium yog dab tsi?
Equilibrium yog ib lub xeev uas cov concentrations ntawm reactants thiab cov khoom nyob twj ywm. Muaj ob hom equilibria li homogeneous equilibrium thiab heterogeneous equilibrium. Qhov sib txawv tseem ceeb ntawm homogeneous thiab heterogeneous equilibrium yog tias nyob rau hauv homogeneous equilibrium, cov reactants thiab cov khoom nyob rau hauv tib theem ntawm teeb meem whereas, nyob rau hauv heterogeneous equilibrium, cov reactants thiab cov khoom nyob rau hauv txawv theem.
Tsis tas li ntawd, thaum txiav txim siab qhov sib npaug tas li rau homogeneous equilibria, peb yuav tsum suav nrog cov concentration ntawm tag nrho cov reactants thiab cov khoom; Txawm li cas los xij, thaum txiav txim siab qhov sib npaug ntawm qhov sib npaug, peb yuav tsum tsis suav nrog cov ntsiab lus ntawm cov khib nyiab thiab cov kua ntshiab thiab yuav tsum siv cov concentrations ntawm lwm cov reactants thiab cov khoom. Piv txwv li, 2SO2(g) + O2(g) ⇌ 2SO3(g) yog qhov sib npaug sib npaug thiab O2(g) + 2C(s) ⇌ 2CO(g) yog ib qho piv txwv rau qhov sib npaug sib npaug.
Hauv qab infographic tabulates qhov sib txawv ntawm homogeneous thiab heterogeneous equilibrium.
Summary – Homogeneous vs. Heterogeneous Equilibrium
Equilibrium yog ib lub xeev uas cov concentrations ntawm reactants thiab cov khoom nyob twj ywm. Muaj ob hom equilibria li homogeneous equilibrium thiab heterogeneous equilibrium. Qhov sib txawv tseem ceeb ntawm homogeneous thiab heterogeneous equilibrium yog tias nyob rau hauv homogeneous equilibrium, cov reactants thiab cov khoom nyob rau hauv tib theem ntawm teeb meem whereas, nyob rau hauv heterogeneous equilibrium, cov reactants thiab cov khoom nyob rau hauv txawv theem. Ntxiv mus, qhov sib npaug tas li rau homogeneous equilibria suav nrog cov concentration ntawm tag nrho cov reactants thiab cov khoom, thaum lub equilibrium tas li rau heterogeneous equilibria yuav tsum tsis suav cov concentrations ntawm solids thiab ntshiab kua.
