Question

1) The reaction of hydrogen peroxide with iodine, H2O2(aq)+I2(aq)⇌OH−(aq)+HIO(aq) is first order in H2O2 and first...

1) The reaction of hydrogen peroxide with iodine,

H2O2(aq)+I2(aq)⇌OH−(aq)+HIO(aq)

is first order in H2O2 and first order in I2. If the concentration of H2O2 was increased by half and the concentration of I2 was quadrupled, by what factor would the reaction rate increase?

2)

Consider the following reaction:

O3(g)→O2(g)+O(g)

Using the results of the Arrhenius analysis (Ea=93.1kJ/mol and A=4.36×1011M⋅s−1), predict the rate constant at 298 K .

3.

The rate constant of a chemical reaction increased from 0.100 s−1 to 3.10 s−1 upon raising the temperature from 25.0 ∘C to 55.0 ∘C .

a) Calculate the value of (1T2−1T1) where T1 is the initial temperature and T2 is the final temperature.

b)Calculate the value of ln(k1k2) where k1 and k2 correspond to the rate constants at the initial and the final temperatures as defined in part A.

c)What is the activation energy of the reaction?

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