00:01
To determine the rate law, we need to know the order of the reaction with respect to each reactant.
00:06
In looking at experiments 1 and 2, we see the concentration of n02 stays constant at 0 .1 molar, but the concentration of 03 is doubled as it goes from 0 .33 to 0 .66.
00:19
The rate increase, then, is also a doubling as it goes from 1 .42 to a 2 .84.
00:27
So when we double the concentration, we double the rate.
00:31
That suggests its first order with respect to ozone.
00:36
Now if we look at experiments 2 and 3, we'll see that the concentration of ozone is staying constant.
00:45
While the concentration of no2 increases, it goes to 0 .25 from 0 .10.
01:02
So it increases by a factor of 2 .5.
01:05
When this happens, the rate increase will be equal to 1.
01:16
So essentially there's no change.
01:19
0 .66 .66 equals 1...