Equilibrium Constant vs Reaction Quotient
Qee qhov kev tawm tsam yog thim rov qab, thiab qee qhov kev tawm tsam tsis tuaj yeem thim rov qab. Hauv cov tshuaj tiv thaiv, cov tshuaj reactants hloov mus rau cov khoom. Thiab hauv qee qhov kev cuam tshuam, cov reactants tuaj yeem tsim dua los ntawm cov khoom. Hom kev tshwm sim no hu ua thim rov qab. Hauv cov tshuaj tiv thaiv tsis tuaj yeem, thaum cov reactants hloov mus rau cov khoom, lawv tsis tuaj yeem rov tsim dua los ntawm cov khoom. Hauv cov tshuaj tiv thaiv rov qab thaum reactants mus rau cov khoom nws hu ua cov tshuaj tiv thaiv pem hauv ntej thiab thaum cov khoom yuav mus rau reactants, nws yog hu ua cov tshuaj tiv thaiv rov qab. Thaum tus nqi ntawm pem hauv ntej thiab rov qab tshwm sim yog sib npaug, ces cov tshuaj tiv thaiv yog hais tias nyob rau hauv equilibrium. Yog li dhau ib lub sij hawm tus nqi ntawm reactants thiab cov khoom tsis hloov. Rov qab cov tshuaj tiv thaiv ib txwm tuaj mus rau qhov sib npaug thiab tswj qhov sib npaug. Thaum lub kaw lus nyob rau ntawm qhov sib npaug, tus nqi ntawm cov khoom thiab cov reactants yuav tsum tsis txhob sib npaug. Nws tuaj yeem muaj ntau dua ntawm cov reactants ntau dua li cov khoom lag luam lossis rov ua dua. Qhov tsuas yog qhov yuav tsum tau muaj nyob rau hauv qhov sib npaug sib npaug yog kom tswj tau qhov nyiaj tas li los ntawm ob qho tib si dhau sijhawm.
Yuav ua li cas yog qhov Equilibrium?
Rau qhov tshuaj tiv thaiv, hauv kev sib npaug, qhov sib npaug ntawm qhov tsis tu ncua tuaj yeem txhais tau; qhov twg nws yog sib npaug ntawm qhov concentration / kev ua ntawm cov khoom thiab concentration / kev ua ntawm cov tshuaj tiv thaiv.
K=[product]/[reactant]m; n thiab m yog stoichiometric coefficients ntawm cov khoom thiab reactant.
Kev sib npaug tsis tu ncua yuav muaj ib chav lossis tsis tuaj yeem. Yog tias n yog sib npaug rau m, tag nrho cov concentration units tshem tawm tsis pub cov units rau K. Yog tias n txawv ntawm m, raws li cov lej, K yuav nyob nrog ib chav. Equilibrium tsis tu ncua yog qhov ntsuas kub tsis tu ncua. Equilibrium tas li muaj tus nqi qub ntawm qhov kub thiab txias tsis hais tus nqi ntawm cov reactants lossis cov khoom hauv nruab nrab. Catalysts lossis kev hloov siab tsis cuam tshuam rau nws. Nws tuaj yeem muaj ntau hom kev sib npaug. Piv txwv li, thaum tsis muaj zog acid yaj nyob rau hauv dej nws tsim equilibrium qhov equilibrium tas li tseem hu ua acid dissociation tas li. Lub cev lub cev ntawm cov khoom lossis cov tshuaj reactants kuj cuam tshuam rau qhov sib npaug tas li, vim tias cov khoom hauv lub xeev tsis suav nrog qhov sib npaug.
Cov Lus Qhia Txog Kev Pom Zoo yog dab tsi?
Reaction quotient yog qhov piv ntawm cov khoom thiab cov reactants hauv cov tshuaj tiv thaiv, ntawm lub sijhawm tshwj xeeb. Nws kuj yog suav hais tias yog Q. Nws yog xam raws li qhov sib npaug ntawm qhov tsis tu ncua, tab sis nws tsis yog ib qho yuav tsum tau siv rau hauv cov tshuaj tiv thaiv, uas tau mus txog lub xeev sib npaug. Yog hais tias qhov ntsuas cov tshuaj tiv thaiv quotient siab dua tus nqi ntawm qhov sib npaug tas li, ces cov tshuaj tiv thaiv yuav mus rau qhov rov qab. Hauv qhov sib piv, thaum cov tshuaj tiv thaiv quotient qis dua qhov sib npaug tas li, cov reactants yuav mus tom ntej. Yog li ntawd, cov tshuaj tiv thaiv quotient yog qhov tseem ceeb hauv kev txiav txim siab cov kev taw qhia ntawm cov tshuaj tiv thaiv.
Qhov sib txawv ntawm Equilibrium Constant thiab Reaction Quotient yog dab tsi?
• Cov tshuaj tiv thaiv tuaj yeem suav tau rau qhov kev tshwm sim txhua lub sijhawm, tsis yog rau cov kev cuam tshuam hauv kev sib npaug xws li qhov sib npaug.
• Yog tias qhov sib npaug tas li yog sib npaug ntawm cov tshuaj tiv thaiv quotient, ces cov tshuaj tiv thaiv yog qhov sib npaug. Los ntawm kev sib piv tus nqi K thiab Q, peb tuaj yeem txiav txim siab qhov twg cov tshuaj tiv thaiv yog qhia.
