Answer to Question #202115 in General Chemistry for Phuthi

Question

Consider the equilibrium reaction: 2NO (g) + O₂ (g) ⇌2NO₂ (g) Δ_rH = -114 kJ.mol^-1

1. With a gas mixture comprising of 20% mole each of NO and NO₂, the remainder being O₂, and K_p = 9.0 at 298 K.
2. Deduce the pressure at which the mixture is at equilibrium

Answer 1

1.75 atm