The decomposition of NOBr is studied manometrically because the number of moles

Question

The decomposition of NOBr is studied manometrically because the number of moles of gas changes; it cannot be studied colorimetrically because both NOBr and Br2 are reddish brown:

2 NOBr (g) ? 2 NO (g)  + Br2 (g)

Use the data below to answer the following:

a) Determine the average rate over the entire experiment.

b) Determine the average rate between 2.00 and 4.00 s.

c) Use graphical methods to estimate the initial reaction rate.

d) Use graphical methods to estimate the rate at 7.00 s.

e) At what time does the instantaneous rate equal the average rate over the entire experiment?

Time (s)

[NOBr] (mol/L)

0.00

0.0100

2.00

0.0071

4.00

0.0055

6.00

0.0045

8.00

0.0038

10.00

0.0033

  

Time (s)

     

[NOBr] (mol/L)

     

0.00

     

0.0100

     

2.00

     

0.0071

     

4.00

     

0.0055

     

6.00

     

0.0045

     

8.00

     

0.0038

     

10.00

     

0.0033

   The decomposition of NOBr is studied manometrically because the number of moles of gas changes; it cannot be studied colorimetrically because both NOBr and Br2 are reddish brown: 2 NOBr (g) ? 2 NO (g) + Br2 (g) Use the data below to answer the following: Determine the average rate over the entire experiment. Determine the average rate between 2.00 and 4.00 s. Use graphical methods to estimate the initial reaction rate. Use graphical methods to estimate the rate at 7.00 s. At what time does the instantaneous rate equal the average rate over the entire experiment?

Explanation / Answer

Answered here:

http://www.chegg.com/homework-help/decomposition-nobr-studied-manometrically-number-moles-gas-c-chapter-16-problem-20p-solution-9780077216504-exc

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