contestada

A vessel contains N₂O₄ and NO₂ in 2:3 molar ratio at 10 atm under equilibrium
Now Kp for N₂O₄ ⇌ ₂NO₂ is :
A. 9 atm⁻¹
B. 9 atm
C. 4.5 atm²
D. 10 atm