An equilibrium mixture of the endothermic reaction N₂O₄(g) ⇌ 2 NO₂(g) is at
CHEMISTRY · Single correct · AP · Chemistry · Equilibrium · Equilibrium
Problem
An equilibrium mixture of the endothermic reaction N₂O₄(g) ⇌ 2 NO₂(g) is at 298K. The temperature is suddenly increased to 350K, but the concentrations of N₂O₄ and NO₂ are initially unchanged. Which statement correctly describes the relationship between the reaction quotient Q and the new equilibrium constant K immediately after the temperature change?
(a) Q>K because the higher temperature decreases the value of K.
(b) Q=K because the concentrations of all species are unchanged.
(c) Q<K because the higher temperature increases the value of K.
(d) Q cannot be compared to K until the system reaches a new equilibrium at 350K.