Print Calculator Periodic Table Ebook Question 4 of 12 (1 point) x Incorrect The

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Print Calculator Periodic Table Ebook Question 4 of 12 (1 point) x Incorrect The data in the table below were collected for the decomposition of H2o2 at a constant temperature. If possible, determine the reaction order in H202 of the decomposition of H202 and calculate the value of the rate constant at the temperature of the experiments. Concentration of Hydrogen Peroxide as a Function of Time Time(s) 0.500 100 0.460 200 0.424 0330 500 1000 0.218 1500 0.144 If possible, determine the order of the reaction. The rate constant is Number Hint Check Answer Q View Solu

Explanation / Answer

Time    [H2O2]      ln[H2O2]

   0       0.5             -0.693

100      0.46            -0.77

200      0.424          -0.858

500     0.33             -1.1

1000    0.218          -1.52

1500     0.144          -1.93

Plot conc vs time. The line is not linear and hence it is not zero order reaction

Next calculate the values of ln conc.

Plot ln conc vs time (see figure)

The slope of the graph is 8.2683 s-1

The first order reaction the plot of ln conc with time give a straight line.

In the present case this is true and hence the reaction is first order with a rate constant of 8.2683 s-1

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