Exam 11: Rate of Reaction

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For a given reaction,the activation energy is 63.9 kJ/mol.If the reaction rate constant is 4.1 × 10-3 L/mol⋅s at 32.0°C,what is the reaction rate constant at -5.0°C? (R = 8.31 J/K⋅mol)

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Hydrogen peroxide decomposes into water and oxygen in a first-order process. H2O2(aq)→ H2O(l)+ 1/2 O2(g) At 20.0°C,the half-life for the reaction is 3.92 × 104 seconds.If the initial concentration of hydrogen peroxide is 0.52 M,what is the concentration after 7.00 days?

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Dinitrogen pentaoxide decomposes to nitrogen dioxide and oxygen according to the following balanced chemical equation and rate expression. 2N2O5(g)→ 4NO2(g)+ O2(g) Rate = k[N2O5] What is the overall reaction order?

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All of the following statements are correct EXCEPT

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