Question

Consider the following reaction:

`N_2O_(4(g)) + Heat ⇌ 2NO_(2(g))`

How is the Composition of equilibrium mixture affected by:

1) a change in temperature

2) a change in pressure

3) change in concentration of N₂O₄

Answer 1

1) Increase in temperature – forward reaction

The decrease in temperature – backward reaction

2) Increase in pressure – forward reaction.

The decrease in pressure – backward reaction

3) Increase in conc. of `[N_2O_4]` -  forward reaction

The decrease in conc. of `[N_2O_4]`  – backward reaction

4) Removal of NO₂ causes the decrease in [NO₂] – forward reaction