00:01
So to solve for this, let's write for the equation for your reaction.
00:05
You have h2o, and this will be composed to h2 on oxygen gas.
00:12
Okay, so to balance this for right here two, sorry, let's write this in another color.
00:18
We're right here too.
00:19
That means we need right here too also.
00:22
So this is our balanced equation.
00:24
And that if we are to write the i stable initial change in equilibrium concentration, so we don't have the initial concentration, right? but we are to denote that as y.
00:37
Then, of course, this is zero initially.
00:39
And then the change will be, this will be equivalent to the coefficient of h2o, it's 2.
00:48
And the amount lost is x, so minus 2x, and this will gain some amount plus 2x.
00:57
And this will be just x.
01:00
So the value at equilibrium is equivalent to y minus 2x, and this is 2x and x.
01:12
And it is stated here that at equilibrium, we have the concentration of our reactant...