00:01
All right, so we're given the equation where nitrogen and hydrogen are in equilibrium with ammonia, and we want to determine the value of kc.
00:11
So first we have to come up with the equilibrium expression, which is based on the law of mass action.
00:17
We take our products and we raise them to the power of their coefficient over the reactants and raise them to the power of their coefficient as long as they are gases, or aqueous solutions.
00:33
All these are gases, so all of these apply.
00:36
One product, nh3, we're going to square that value because the coefficient's two.
00:45
We have n2 and h2 in the denominator, because those are our reactants, both gases.
00:53
The h2 is going to be the third power because the coefficient is three.
00:58
Now from here we have values for these substances.
01:02
We have 1 .1 moles per liter...