00:01
Okay, so in this problem, we're going to compare q with k.
00:06
All right.
00:08
Q is for any kind of given conditions that you have.
00:13
So any pressures or concentrations that you have are fine for q.
00:17
K, they have to be at equilibrium.
00:21
Okay? so the expression for q is exactly the same as k.
00:25
So we'll go ahead and write that.
00:27
Q is products over reactants raised to their coefficients.
00:33
So, pcl3, partial pressure of pcl3, partial pressure of cl2, all divided by the partial pressure of pcl5.
00:45
And what we'll do is we'll fill in the values they've given us, because we don't know if we're at equilibrium or not.
00:51
Okay, so we'll just fill in what they've told us, and we'll get a value of 8 .25 for k...