Qhov sib txawv tseem ceeb ntawm kev txwv cov reactant thiab cov reactant ntau dhau yog tias qhov kev txwv cov reactant tuaj yeem txwv cov khoom kawg uas tsim tawm, qhov ntau dua reactant tsis cuam tshuam rau cov khoom kawg.
Ib reactant yog ib qho khoom sib xyaw uas tau noj thaum muaj tshuaj lom neeg. Cov tshuaj tiv thaiv tshuaj muaj xws li reactants - qee cov reactants ntau dhau thiab qee qhov tsawg. Lub limiting reactant ib txwm txiav txim siab tus nqi ntawm cov khoom kawg tsim tom qab ua tiav cov tshuaj tiv thaiv. Qhov ntawd txhais tau hais tias, qhov limiting reactant txwv tus nqi ntawm cov khoom kawg, tab sis tsis muaj qhov cuam tshuam los ntawm cov reactant ntau dhau.
Limiting Reactant yog dab tsi?
Limiting reactant yog cov reactant ntawm cov tshuaj tiv thaiv tshwj xeeb uas tuaj yeem txwv qhov tsim ntawm cov khoom kawg. Yog li ntawd, nws txiav txim siab npaum li cas cov khoom peb tuaj yeem tawm los ntawm kev ua tiav cov tshuaj tiv thaiv. Ntxiv mus, qhov reactant no tau noj tag nrho thaum lub sijhawm cov tshuaj tiv thaiv. Cov tshuaj tiv thaiv nres thaum tag nrho cov reactant txwv tau noj. Nws yog vim cov tshuaj tiv thaiv nres thaum ib qho reactant ploj lawm.
Daim duab 01: Yog tias txwv cov reactant yog B, thiab cov khoom kawg yog C thaum tshaj reactant yog A, cov tshuaj tiv thaiv zaum kawg muaj A thiab C.
Los ntawm kev saib ntawm stoichiometric kev sib raug zoo ntawm cov reactant no thiab cov khoom kawg hauv kev sib npaug tshuaj, peb tuaj yeem txiav txim siab seb cov khoom yuav tsim ntau npaum li cas.
Dab tsi yog Reactant?
Ib qho reactant ntau dhau yog cov reactant uas muaj nyob rau hauv ntau tshaj nyob rau hauv cov tshuaj tiv thaiv sib tov. Yog li ntawd, tom qab ua tiav cov tshuaj tiv thaiv, qee qhov nyiaj ntawm cov reactant no tseem tshuav vim tias nws dhau lawm. Peb tuaj yeem soj ntsuam qhov muaj ntau ntawm cov reactant thaum pib ntawm cov tshuaj tiv thaiv, ntawm qhov kev loj hlob, thiab thaum kawg thiab. Qee lub sij hawm qhov muaj ntau tshaj reactant yog ib qho tseem ceeb hauv kev txiav txim siab txog qhov tsis paub ntawm ib yam khoom uas tuaj yeem cuam tshuam nrog cov reactant ntau dhau. Piv txwv li, nyob rau hauv txoj kev titrimetric, peb siv cov reactant ntau dhau nrog tus nqi paub thiab tom qab ua tiav cov tshuaj tiv thaiv. Ntawm no, peb tuaj yeem txiav txim siab qhov ntau ntawm cov reactant tseem muaj nyob rau hauv cov tshuaj tiv thaiv sib tov, txhawm rau txiav txim siab ntau npaum li cas ntawm cov reactant no tshwm sim nrog qhov tsis paub.
Qhov txawv ntawm Limiting Reactant thiab Excess Reactant yog dab tsi?
Qhov kev txwv tsis pub tshaj thiab cov reactant ntau dhau yog qhov tseem ceeb hauv cov tshuaj tiv thaiv tshuaj. Qhov sib txawv tseem ceeb ntawm kev txwv cov reactant thiab cov reactant ntau dhau yog tias qhov kev txwv cov reactant tuaj yeem txwv cov khoom kawg uas tsim tawm, qhov ntau dua reactant tsis cuam tshuam rau cov khoom kawg.
Hauv qab infographic qhia ntau qhov tseeb ntawm qhov sib txawv ntawm kev txwv cov reactant thiab tshaj reactant.
Summary – Limiting Reactant vs Excess Reactant
Qhov kev txwv tsis pub tshaj thiab cov reactant ntau dhau yog qhov tseem ceeb hauv cov tshuaj tiv thaiv tshuaj. Ib qho kev txwv reactant tuaj yeem txwv tus nqi ntawm cov khoom kawg uas tsim tawm, qhov ntau dua reactant tsis cuam tshuam rau cov khoom kawg. Yog li ntawd, qhov no yog qhov sib txawv tseem ceeb ntawm kev txwv cov reactant thiab tshaj reactant
