Question

If the partial pressure of NO₂ is 1 atm, what partial pressure of N₂O₄ is required for the conversion of N₂O₄ to NO₂?

a) 1 atm
b) 2 atm
c) 0.5 atm
d) 3 atm

Answer 1

The partial pressure of N₂O₄ required for the conversion of N₂O₄ to NO₂ is 1 atm.

Step-by-step explanation:

The partial pressure of N₂O₄ required for the conversion of N₂O₄ to NO₂ can be determined using the equilibrium constant expression for the reaction:

N₂O₄(g) ⇌ 2NO₂(g)

The equilibrium constant expression is given as Kp = [NO₂]² / [N₂O₄]. Rearranging this expression and substituting the given partial pressure of NO₂, which is 1 atm, we can solve for the partial pressure of N₂O₄:

Kp = (PNO₂)² / (Pₙₒ₂₄)

1 = (1)² / (Pₙₒ₂₄)

Therefore, the partial pressure of N₂O₄ required for the conversion is 1 atm.