Exam 13: Chemical Kinetics

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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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What is the overall order of the following reaction,given the rate law? 2 X + 3 Y → 2 Z Rate = k[X]1[Y]2

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What is the difference between average reaction rate and instantaneous reaction rate?

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For a reaction that follows the general rate law Rate = k[A][B]2,what will happen to the rate of reaction if the concentration of B is increased by a factor of 3.00? The rate will

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The rate constant for the first-order decomposition of N2O is 3.40 s-1.What is the half-life of the decomposition?

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Is the activation energy for a forward reaction the same as the activation energy for the reverse of the same reaction?

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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 are the units of k in a zeroth order reaction?

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Given the following balanced equation,determine the rate of reaction with respect to [NOCl]. 2 NO(g)+ Cl2(g)→ 2 NOCl(g)

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If the activation energy for a given compound is found to be 103 kJ/mol,with a frequency factor of 4.0 × 1013 s-1,what is the rate constant for this reaction at 398 K?

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Which rate law is consistent with the proposed mechanism for the reaction? NO2(g)+ CO(g)→ NO2(g)+ CO2(g) Mechanism: 2 NO2(g)→ NO3(g)+ NO(g)(fast) NO3(g)+ CO(g)→ NO2(g)+ CO2(g)(slow)

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What are the units of k in the following rate law? Rate = k[X][Y]1/2

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Given the following balanced equation,determine the rate of reaction with respect to [SO3].If the rate of O2 loss is 3.56 × 10-3 M/s,what is the rate of formation of SO3? 2 SO2(g)+ O2(g)→ 2 SO3(g)

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

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What are the units of k in the following rate law? Rate = k[X]2

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The rate constant for a second-order reaction is 0.54 M-1s-1.What is the half-life of this reaction if the initial concentration is 0.33 M?

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Match the following. -A

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Explain what the exponential factor in the Arrhenius equation represents.

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Given the following balanced equation,determine the rate of reaction with respect to [H2]. N2(g)+ 3 H2(g)→ 2 NH3(g)

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The second-order decomposition of NO2 has a rate constant of 0.255 M-1s-1.How much NO2 decomposes in 4.00 s if the initial concentration of NO2 (1.00 L volume)is 1.33 M?

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