00:01
To determine the rate law and the rate constant, we need to determine the order of the reaction with respect to each reactant.
00:08
In looking at the data and examining experiments 1 and 2, we see that only the concentration of h2 is changing.
00:19
It goes to 5 .69 from 2 .13.
00:25
This is an increase by a factor of 2 .67.
00:34
When this occurs, we also see a change.
00:36
In the rate.
00:38
The rate goes from .871 to 6 .22.
00:49
This is a rate change of 7 .14.
00:54
So with a concentration change of 2 .67, how can that equal a rate change of 7 .14? well, we need to raise that rate, that concentration change to some integer, which represents the order of the reaction of the reaction.
01:13
With respect to h2 in order to get 7 .14, and that integer is 2.
01:19
So that means it's second order with respect to h2...