00:01
Alright, so we're given the equation and then we're to consider the following mechanism for the reaction.
00:06
We have the overall equation.
00:08
We have to look at the mechanism.
00:10
Mechanism so you have h2o2 plus 2 plus i minus and you have hoi plus oh minus which is a slow reaction then we have hoi plus i minus and this gives us i2 plus oh minus then we have 2oh minus plus h plus right plus 2h plus and we have this to be 2h2o right so it says what species are intermediate the intermediate is usually produced in one step and consumed in another right it's producing one step and then consumed in another so the intermediate here is this look at this is produced here and consumed here right so that is the intermediate the next one says and what else what else this is oh - is also an intermediate if you look at it so this whole thing produced here and you know it's consumed here that's also probably an intimate that's also an intermediate there are no catalysts right this doesn't look like you have the catalyst which may be present you you actually have to cut at least first as a reactant and then as a product that's usually what you have as a catalyst but there are no catalysts here right from this mechanism sure let's sketch an energy profile diagram for the mechanism and clearly label the rate determining step in your diagram.
02:00
So here's the thing.
02:01
The energy profile diagram, right, there are three steps.
02:06
So there will be three calls and the soil step is the first step.
02:10
So if i have my reactant, we don't know if this reaction is endo or exo, so what i'm going to assume that is, you know, is exothermic.
02:22
Let's say it's exothermic.
02:23
So i have something like this.
02:24
If i have this, right, as my first step, this is this.
02:30
And i have something like this...