posted by Shannon .
consider the reaction:
N2(g) + O2 (g) --> 2NO (g)
removing some of the N2(g) will_____
A) increase the concentration of O2
B) decrease the concentration of O2
C) increase the concentration of NO(g)
When we do something to a system in equilibrium it will shift one way or the other in order to undo what we've done to it. So if we remove N2 the reaction will shift to try to increase N2. How can it do that? By shifting to the left; in so doing it will decrease concn of NO and increase concn of O2.