Question

For the gas phase decomposition of nitrogen dioxide at 383 °C2 NO22 NO + O2the following data have been obtained:[NO2], M0.4220.1297.59×10-25.28×10-2 time, s010.0020.0030.00What is the average rate of disappearance of NO2 over the time period from t = 10.00 s to t = 20.00 s? M s-1

Answer 1

So,

The first thing we're going to remember is the equation that we're going to use to find the average rate of disappearance of a reactive.

Given a reaction of the form:

We're given the reaction:

Now, we only need to replace in the equation:

The average rate of dissapareance of NO2 over the time period from t=10s to t=20s, is 0.00381 M/s.