Learning Goal To understand how elementary steps make up a mechanism and now the nata law for an elementary step can be

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Learning Goal To Understand How Elementary Steps Make Up A Mechanism And Now The Nata Law For An Elementary Step Can Be 1 (33.86 KiB) Viewed 50 times

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Learning Goal To understand how elementary steps make up a mechanism and now the nata law for an elementary step can be determined Very uten, a reaction does not tell us the whole glory For instanos, the reaction NO:(s)+CO(s)-NO(a)-CO(g) does not involve a collision between an NO mode and a CO moue Based on experimental data moderat temperatures, this reaction is thought to occur in the wing two step 1. NO₂(g) +NO₂(g)-NO₂(g) NO 2NO+COCO+NO(g) Each individual steps cated an elementary Together, th sementary steps are called the readion mecha Over the reaction is NO₂(g) + CO(g) +NO(g) + CO₂(g) Nementary steps NO, approa reactant; therefore it cances of the final emical equation NO₂ is cated a reaction intermediate Also Sacules of NO, we in t sap and morecule of NO, appears as produit of the second step, the mer effect leaves only 1 molocie of NO, a actant en the net equation Moscutanty is the proper som for how the molecules colide in a action. For example, step 1 bemolecucar because it involves ne collision of two molecures Step 2 is also bimolecular for the sme reason, Livmor actions involve only one molecule in the reactants Though rare colisions among three molecules of > Revi Cunard Order and rate of a reaction The Furthermore alementary step directly coresponds to its moodarty Both as in the example are second ander because they are each tiden w can be determined directly from the number of each type of molecule in an ementary sap For example, the law for sep Tale NO₂ 2 The exponent is used because the reaction involves two NO, molecules. The ale w t rate=ANO COP-NO, CO because the reaction moves only one molecule of each reactant the exponents and Analyzing a new reaction Consider the following sementary steps that make up the mechanism of a certain reaction 1 XX-+E+F 2E+M-F+N Part A What is the overall actor? Express your answer as a chemical equation View Avalable in ΑΣΦ και με α #tv

Learning Goal To understand how elementary steps make up a mechanism and how the rate law for an elementary step can be determined Very often, a reaction does not tell us the whole story. For instance, the secon NO₂(g) +CO(g) NO(g) + CO₂(g) does not involve a colision between an NO₂ molecule and a CO molecule. Based on experimental data at moderate temperatures, this reaction is thought to occur in the following two steps 1. NO.()+NO₂(g)-NO₂(g) + NO(g) 2 NO(g) + CO-CO,(s)+NO (0) Each individual step is called an electentary step Together, thes elementary steps are called the reaction mechanism Over the resulting NO. CO-NO(g) + CO₂(a) Na ematary steps NO appears both as a restant, therefore it cancels out of the final NO in called a reaction intermediate Aso NO: appear in the reactants of the molecule of NO, appears as product of the snel efect leaves only 1 molecule of NO as a the ret equation first step second Maw ty is the proper term for how the molecules collide" in ton For example, si 1 is bmolecular because it involves son of two molecules Sheo 2 is also bimolecular for the reason molecular reactions involve only one molecule The reactants Though rane, collisions among three molecules Part B Which species is a reaction intermediate View Available Hina) Submit Review Constars Periode Table Part C What is the rate law for step 1 of this reaction? Express your answer in standard MasteringChemistry notation. For example, if the rate law is AAC type he[A]-[C]-3. View Available Rale #tv B Submit

Learning Goal: To understand how sementary steps make up a mechanism and how the rate for an elementary step can be determined Very oftan, a reaction does not tell us the whole story For instance, the reaction NO₂ (s)+CO(s)-NO(g) + CO(g) does not involve a colision between an NO, molecule and s CO molecule. Based on experimental data at moderate temperatures, this reaction is thought to occur in the following two steps 1. NO₂(0)+NO₂(g) NO(g) +NO) 2. NO()+ CO(g) +CO(a)+NO(a) Each individual step is called an alamentary ate Together, the elementary steps are called the reaction mechanism Oversil the resulting reaction is NO₂(g) +CO(g) +NO(g) + CO₂(g) tomat in the elementary steps NO: appears both as a pebu and then as a reactant; therefore it cancels out of the final chemical equation NO, is called a reaction intermediate Also that 2 molecules of NO appear in the reactants of the est slep and 1 molecule of NO appears as product of the second step, the net effect leaves only I molecule of NO reactant in the hel equation Molecularly is the proper term for how the molecules sold in a reaction For example, step 1 is bimolecular because it is the collision of two molecules Step 2 is also timolecular for the same reason molecular reactions involve only one molecule in the reactants Though rare, cofisions among three molecules Part C What is the rate law hr step of this Express your answer in standard MasteringChemistry notation. For example, the rate law is EAC typ AC View Available Hints Pale Part D What is the rate law for step 2 of this rea Express your answer in standard Mastering Chemistry notation. For example, if the rate law is AC type [A]+[C] View Available) Pate Submit Provide Feedback div ATO Submit 201 Next 3