Question

The decomposition of nitrosyl bromide is followed by measuring total pressure
because the number of moles of gas changes; it cannot be followed
colorimetrically because both NOBr and Br2 are reddish brown:
2 NOBr(g) ® 2 NO(g) + Br2(g)
Use the data in the table 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

Answer 1

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