In the first 15.0 s of the reaction, 1.7×10−2 mol of O2 is produced in a reaction vessel with a volume of 0.440 L . What is the average rate of the reaction over this time interval?

Explanation:

Hello,

In this case, for the reaction:

We can easily compute the average rate by firstly computing the final concentration of oxygen:

Then, we compute it by using the given interval of time: from 0 seconds to 15.0 seconds and concentration: from 0 M to 0.0386M as oxygen is being formed:

Regards.

1.43 x 10^-11 j the guy commented the awnser just making sure u see it .