00:01
We're given the information you see here and we're asked to find the rate law, nk.
00:05
So let's begin.
00:07
First, let's find our order for n2.
00:17
To find the order for n2, we're going to use trials 1 and 2.
00:32
I always include everything for my first one.
00:35
So here we'll have 450, excuse me, trial 2 will be 4.
00:40
Good heavens.
00:45
I always put my bigger number on top.
00:51
So i'm going to do 23 .0 meters per, or molarity per second over 4 .0 molarity per second equals kk.
01:07
And then we will have 0 .707 to the x over 0 .123 to the x.
01:27
And finally, 1 .76 to the y and 1 .76 to the y.
01:39
So that means my k's will cross out, my y's will cross out.
01:44
And i'm left with, i'm not very happy with these numbers.
01:51
23 divided by 4, 5 .75 equals 0 .707 divided by 0 .123, good, equals 5 .75 to the x.
02:16
X equals 1.
02:18
So this is first order in n2.
02:30
Next, let's do order of h2.
02:44
And for order of h2, let's use trials 1 and 3.
02:53
1 and 3.
02:55
So here i'm going to have 451 over 23.
03:07
So this time i'm going to leave off my k's and i'm going to leave these.
03:10
And i'm only going to include these two.
03:17
So i have 0, excuse me, 7 .79 to the y over 1 .76 to the y.
03:35
451 divided by 23 is 19 .6.
03:44
7 .7 divided by 1 .76 is 4 .375...