Exam 15: Chemical Kinetics

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The first-order decomposition of cyclopropane has a rate constant of 6.7 × 10-4 s-1.If the initial concentration of cyclopropane is 1.33 M,what is the concentration of cyclopropane after 644 s?

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Given the following rate law,how does the rate of reaction change if the concentration of X is doubled? Rate = k [X][Y]2

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The isomerization reaction,CH3NC → CH3CN,is first order and the rate constant is equal to 0.46 s-1 at 600 K.What is the concentration of CH3NC after 0.20 minutes if the initial concentration is 0.30 M?

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What is the overall order of the following reaction,given the rate law? 2A + 3 B → 2C + D Rate = k[A] [B] 0

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The first-order reaction,SO2Cl2 → SO2 + Cl2,has a rate constant equal to 2.20 × 10-5 s-1 at 593 K.What percentage of the initial amount of SO2Cl2 will remain after 6.00 hours?

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What function do enzymes serve?

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Given the following rate law,how does the rate of reaction change if the concentration of Y is doubled? Rate = k [X][Y]2

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What happens to the concentration of reactants and products during a chemical reaction?

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The reaction,2A + 2B → C + D,has a rate constant of 6.0 × 10-3 M-2 s-1 at 0°C.The order of this reaction is

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Given the following balanced equation,determine the rate of reaction with respect to [SO3]. 2 SO2(g)+ O2(g)→ 2 SO3(g)

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Which of the following represents the integrated rate law for a second-order reaction?

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Derive an expression for a "1/4-life" for a first-order reaction.

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The first-order decomposition of N2O at 1000 K has a rate constant of 0.76 s-1.If the initial concentration of N2O is 10.9 M,what is the concentration of N2O after 9.6 s?

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Given the following balanced equation,determine the rate of reaction with respect to [O2].If the rate of O2 loss is 2.64 × 10-3 M/s,what is the rate of formation of SO3? 2 SO2(g)+ O2(g)→ 2 SO3(g)

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Carbon-14 has a half-life of 5720 years and this is a first order reaction.If a piece of wood has converted 25% of the carbon-14,then how old is it?

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What is the overall order of the following reaction,given the rate law? 2NO(g)+ H2(g)→ N2(g)+ 2H2O(g)Rate = k[NO]2[H2]

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The aquation of tris(1,10-phenanthroline)iron(II)in acid solution takes place according to the equation: Fe(phen)32+ + 3 H3O+ + 3 H2O → Fe(H2O)62+ + 3 phenH+. If the activation energy,Ea,is 126 kJ/mol and the rate constant at 30°C is 9.8 × 10-3 min-1,what is the rate constant at 35°C?

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A reaction has a rate constant of 3.3 × 10-2 s-1 at 22°C,and a rate constant of 1.5 × 10+2 s-1 at 210°C.What is the activation energy?

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Explain how the order of a reaction can be determined.

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Which rate law is bimolecular?

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