Question

consider the reaction: n₂(g) + o₂(g) ⇌ 2no(g). part 1 of 2 what happens to the concentration of each substance when n₂ is increased? select the single best answer for each species. no select and o₂ select.

Explanation:

Step1: Apply Le Chatelier's Principle

Le Chatelier's Principle states that if a stress is applied to a system at equilibrium, the system will shift in a direction to counteract that stress. Here, the stress is an increase in \([N_2]\).

Step2: Analyze the shift for \([NO]\)

When \([N_2]\) increases, the system will shift to the right (towards the products) to consume the added \(N_2\). Since \(NO\) is a product, its concentration will increase as the reaction produces more \(NO\) to re - establish equilibrium.

Step3: Analyze the shift for \([O_2]\)

As the system shifts to the right to consume \(N_2\), it also consumes \(O_2\) (because \(O_2\) is a reactant along with \(N_2\) in the forward reaction). So, the concentration of \(O_2\) will decrease as it is used up in the forward reaction to produce more \(NO\).

Answer:

For \([NO]\): Increases; For \([O_2]\): Decreases